Dpf pressure reading at idle. I use EGT 1 to monitor turbo temps before shutdown.

Dpf pressure reading at idle 25. 1psi before regen starts, and 0. @Idle (kPa) @4k RPM (kPa) DPF Delta Pressure: 2. Normally at idle the differential pressure is too low to register if the DPF has no ash or DPF differential pressure reading is very low either the remap has been done poorly and the wrong maps changed or if it was AdBlue and DPF delete and either the filter has been drilled out or data values changed to disable active monitoring Dpf pressure sensor was replaced and the dpf was cleaned - this helped for around 15 thousand miles 3. 80 and 1. There is an invalid At idle (770 rpm): exhaust back pressure 1201 hPa (17 psi); DPF differential pressure 12 hPa (0. 5. I noted watching a regen yesterday, it seemed like the pressure at idle, just before the regen was around 12 mb, My 2. that familiar, so shy to pull trigger on new DPF. Though I have heard good things about "Wurth" DPF cleaner, Which actually gets sprayed into the post DPF pressure sensor hole. I have replaced the stuck open thermostat, dpf sensor, blocked beyond repair dpf, cleaned out turbo Pcm faults have now cleared and on idle I'm getting a nice 0. . 4L Power Stroke Diesel - dpf pressure sensor - i was installing my dpf/doc delete pipe tonight and i broke the dam pressure sensor taking it off the dpf. i managed to glue it together and get the delete installed and am now running the spartan tunes which btw wow! but im worried about the glue job i did breaking of DPF diff pressure sensor shows Dpf isn't blocked if I'm right as pressure difference seems ok or sensor is faulty. I also found the tube for the pressure sensor into the filter was loose enough to move and had black soot residue Hot engine at idle: Differential Pressure Sensor (High Resolution) was 0. Signals seem good to me, maybe first adaptation didn't take. You know, like the OP asked about. com very common! Implausible usually means its Leaving it to finish a regen at idle is the worst case as you have a lot of heat but not much exhaust flow. 14psi when idling as reported by AE. If you are talking about the differential pressure sensors in the dpf that is a different discussion entirely. The dpf keeps regenerating every 60 miles or so. Reactions: 2007 60. Griz Discussion starter. Readings from the exhaust pressure sensor are indicating negative pressure, but the tech who performed the DPF cleaning also pressure tested the DPF, and ruled out the DPF being damaged. Jump to Latest 11K views 10 replies 5 participants last post by awol Jan 26, 2020. 45 volts at idle, and DPF pressure is around 4-5PSI under a heavy WOT accleration, enough to properly test a turbocharged system. What is an acceptable/average pressure differential for a DPF. while reading a few threads i thought about running AE on my f250 again. 6-10 hPa at idle. The readout on my Holley Sniper says I'm idling at 40 kPa. You may find that one of the pressure pipes is leaking so the sensor works fine but only a small amount of DPF regen at idle. 45psi in AE is wrong and 11. And I'm still having the issue. Idle vacuum for most engines is about 18 to 22 in. Sometimes I noticed high fuel consumption 0. Hi HMC, Thanks for the response really appercate it. insignia, particulate filter pressure sensor high differential pressure, insignia dpf pressure in psi, what is dpf kpa when blocked, DPF differential pressure at idle, normal dpf pressure reading kpa, opel Would need more information, what the dpf sensor readings are key on engine off, idle and at 2500rpm. ? a) Ignition on b) Engine running at idle c) Engine running at around 2000rpm It's for a 2012 Ducato 3. Joined Dec 10, 2023 Messages 31 Location London Car I've set up the DPF pressure measurement but going to wait until daytime tomorrow to avoid upsetting the neighbours. If no bolt/ nut. At 3,000 rpm, I have 2. Cla2402 Member. dpf inlet pressure compared I assume now that the backpressure value is from a sensor upstream near the turbo, and that the DPF pressure reading is after the DPF and added to this upstream sensor to create a before and after delta-pressure. 198 psi,i was wondering two things is this somewhat normal,and exactly where does this sensor/reading live on the engine just 0. Dpf pressure sensor was replaced and the dpf was cleaned - this helped for around 15 thousand miles 3. FWIW, the boost gauge in the truck continues to work. 4L Power Stroke Diesel - dpf pressure sensor I've never gotten a pressure reading since I installed my DPF delete. 300mb is about 4. Posts. Yes i did checked the DPF back pressure sensor reading at idle both with MAF plug in and un-plugged and they both show the same value ie around 3-11mbar. A split pipe was replaced and several forced regens later, a P244A DPF Differential pressure too low appeared. 2100 posts · Joined 2002 Add to quote; Only show this user #5 · Aug 2, 2011. When I do the DPF back pressure test with the just the engine running and no driving I have approx 12mbar at idle, 55mbar at 2000rpm and 100mbar at 4000rpm, these results are roughly half the BMW max recommended value. 40 kPa would be around 18 inHg. Lifters and rockers create oil flow resistance by design, that is where the “oil pressure” reading on the gauge come from. So I think there's something with that PID loading that causes a glitch in Boost and DPF pressure PID occasionally. 2-15. Consult a repair manual or online database for the specific pressure range for your make and IDE07744 Particle filter: air pressure sensor 1 bank 1: raw value 34 hPa IDE07747 Particle filter: differential pressure sensor 1 bank 1: offset 2 hPa-----Engine Idle-----IDE00167 Exhaust temperature 1 bank 1 108. Can someone just reconfirm that Intake Manifold Pressure = Manifold Absolute Pressure? 2. Reply. 015-. Sensor #3 - Post-DPF; Sensor #4 - No standard location specified, Note: This is an absolute pressure value: At engine idle it will show slightly lower than ambient pressure (0 psi/kPa means an atmoshperic/ambient pressure reading) Fuel Rail Pressure (Absolute) The soot level is above 200%, the DPF inlet looks very dirty, and the differential pressure is above 15 kPa (2. on some mountain top experiencing a low pressure situation. When driving, I get the P2002 code (particle filter system below efficiency) and live data shows the pressure differential across the DPF to be constantly at 0. DPF exterior didn't look weathered at all. Live Data showed DPF pressure at 0. Posting your DPF Mbar readings at idle and say 3000rpm might help. 52 if I rev it good in the driveway, so the sensor is reading “something” just don’t know if At idle the MAF reading was ~13g/sec All this seems linked to the DPF differential pressure reading behaviour so I think the aftermarket, mistreated DPF has some damage resulting in either a reduced capacity and/or a high flow rate restriction/blockage- not unexpected really. 4-7 mbar at idle is not a particularly high value - the increase to 200 mbar when accelerating is quite high. 1 kPa / 1 hectopascal (hPa)) at idle: I take care of a peterbilt with a mx13, it keeps throwing code 3251/16 for dpf differential pressure data valid but above normal range. 6g, 0. So I'm now thinking that this message is not related directly to the DPF, but that a sensor might be giving the wrong reading or has failed and so is saying "this could caused the DPF to get blocked". Test drove120km yesterday and van seams to be going ok. I struggled to find the oil - ash numbers using FORSCAN or anything else. 5kpa,maybe the dpf needs a clean with a good cleaner,if you do don't forget to do any pressure sensor/dpf changed Now I've been reading about exhaust back pressure (EBP) and turbo boost pressure (TBP) and people are saying that the EBP to TBP ratio should be close to 1:1 (i. 0 180. 2 psi). With all the threads on here lately about dpf's blocking. have a ds3 2011 hdi with smoke issue no codes in ecu but dpf pressure show 17mb at idle raising to over 200mb at 3000rpm is this normal readings or would you say its partly blocked thankyou trying to find reason for black smoke issue only 39k on car fsh main dealer don't use cit-rotti wrote: ↑ Fri Feb 03, 2023 10:21 pm At idle, the differential pressure should be "0" mbar. When i check the boost pressure during full throttle acceleration, there is always a "spike", followed by a significant drop of pressure, which can be felt as a I once had an IPR which went full on which was evident by the chattering of the injectors. The difference between 14. After cat stabilized at 475-500F, the DPF pressure (PSI) is roughly RPM/1000. Differential pressure sensor readings: (1 mbar = 0. 4kPa Regeneration Control Status $00110080 Distance from last Regen was 580KM Calculated PM was 21. AOD idle pressure much too high. Been on a 140 mile drive on dual carriageway this weekend and car seems to be stuck in regen mode. Tags dpf regeneration. Checked dpf values and seems like it hasnt regen in 1000 miles but ash a d soot level low so dont understand why it would be constantly trying to regen. I think you need to read the codes off them and program them into the ECU. mkh93 Discussion starter. It’s reading 400% on the fill level and pressure is around 1 bar at idle and 3 bar when revved to Approx 2500rpm. Once the boost pressure glitched and went to 0. Note that Regeneration Cycle will not begin on the 6. To me this says that either the sensor is broken or my tool cannot read this. 317 IDE07378 Exhaust flap actuator 1: B1: inlet pressure - specified value 1013. Whenever the throttle is opened properly, the differential pressure increases and then returns to the old idle value. 2 psi) when checked with VCADS. After checking the data further, 2011 Insignia 2. Quote 11-27-2015, 04:51 PM #2: N54Bob1988. Dealer replaced the sensor 3 times. It's coming up because it sees the RPM increase, knows that Next checked the DPF differential pressure readings: 14 mbar at idle (max 35) 47 mbar at 2000 rpm (max 75) 128 mbar at 4000 rpm (max 200) That all looked good so I eliminated the permanent DPF fault was the This fault usually means the dpf has high backpressure, connect Opcom and look at the 'exhaust aftertreatment' live data, whats the dpf pressure sensor reading at Ignition on engine off and again at idle and then 2000 rpm. I use EGT 1 to monitor turbo temps before shutdown. 3L, idle ICP at 470 sounds normal, Once you have done that, DPF / CAT CLEANER + FEED PIPE buy the above. Using BlueDriver, I have monitored the DPF pressure, cat temp, and RPM. I measured a voltage of approx. Previously, I found the doc I let temp sensor was unscrewed and just resting in its hole. 0 it would not respond after a key cycle nor after unplugging the device from the cable (nor OBD2) port. Severe black coating on the surfaces behind the DPF indicates that the DPF is cracked or partially melted. Introduction When your car’s engine is running, maintaining proper oil pressure is crucial for its smooth operation and longevity. Would anyone know if this is actually blocked with these readings or if What steps to follow if you see negative pressure numbers on your diesel particulate pressure sensor. I can also watch Particle filter: difference pressure-DIP_PF: readings on the VCDS and it changes from 0. We’re talking about excessive back pressure readings while on the throttle. I have been watching different pressure values but unless you know what is a correct reading that is probably useless. Hooked up my A&E and it was showing 700 psi at idle which said the ECM was commanding the correct pressure. Normal or not. 65 to 1. 14. Read less. I'll record a 10 mile , dpf differential pressure kpa, vauxhall Insignia DPF Differential Pressure Sensor (2008->), Dpf kpa pressure, vauxhall zafira p1901-75, what should. To understand how the DPF differential pressure sensor works, why it fails, and how to replace it when it does, let’s briefly discuss the DPF. Some days the reading at idle is 3. So as suspected a reading of 1 What is your boost pressure reading at idle rpm and when you rev the engine a little? Do you mean to turbocharger? Yes, I mean turbocharger boost pressure reading at idle rpm. Diff. Idling DPF pressure delta should indicate a blocked DPF - my *guess* - idling pressure Already here i did seen the difference. 04V at idle then took the intake end pipe off and blew an airline pressure into it to see if it would change. Test all DPF temperature sensors are working. Though +V is nominally 5V, I measured 5. 65-0. After reading the Hello and Thank you! I have VCDS scan with old ECU and all values are same, Part no SW, HW, Component, Revision, Coding, Shop #, Asam dataset and ROD are same as in my first post full scan. When I bought my CLA with the om651 engine the dpf regened every 60-70 miles. 1 kPa / 1 hectopascal (hPa)) at idle: A DPF pressure sensor is vital to the longevity of the DPF, and if the DPF becomes completely obstructed, the regeneration process will not fix it. 0 . 9 -4. OP. By way of comparison, here are some interesting readings before and after: B28/8 (Pressure differential sensor DPF) 20. www. EGT 3 is just interesting to watch during a regen. To figure out your barametric pressure. At 2910 rpm: exhaust back pressure 1750 hPa (25 psi); DPF This suggests the readings on pressure are normal, given idle and mild revs applied. A DPF pressure sensor is vital to the longevity of the DPF, and if the DPF becomes completely obstructed, the regeneration process will not fix it. 04 (Fahrenheit) I am going to compare these to my wife's car tonight. What's "Normal" vs "Excessive" DPF differential pressure? Mine's measuring 4-5mBar at fully warm idle, & 40-50 mBar at steady state, flat ground 75MPH on the highway. 6V in practice. I saw someone else on Youtube check their MAP reading at idle and it was 8. 7L engine until the DPF Load reads over 100%. 07 psi at about 1500 rpm driving it was 33. Checked the sensor by applying vacuum, hey presto Forscan showing a pressure. What I would like to know is how high the pressure difference can be before the problems begin. If there's a problem with urea, EGR, or the DPF, a CEL will be set quickly and then you can read the code. Additionally, your DPF pressure readings of around 40-80mb at 3000 RPM on B28/8 seem to be within expected ranges for your vehicle. I occasionally saw negative readings in the past but it was usually around 0 at idle. After checking the data further, So I thought I'd have a look at live data and check the DPF pressures, haven't done a proper test yet as I didn't want to sit on the drive revving my car to 4k rpm but at idle Back Pressure is reading a NEGATIVE Still same problem. Exhaust pressure sensor #1 is for dpf differential pressure and is reading 113mb at idle and goes to 131mb at 3000 rpm in neutral. I know when the DPF psi is getting up to about Key on engine off should read 14 psi (ambient) Should read 14-18 psi at idle warm, 28 psi max at 3000 rpm warm. 5 g/h when I reached my destination which Pressure reading: A typical EPS scanner reading for pressure may be approx. 5 inHg would be around 52 kPa. Idle at 1. I am going to keep an eye on mine once it warms up here and try and keep the DPF screen on for a whole fill up and see what it does. 1, 0. 2003 F-250 XLT Crew Cab 7. 300 On my case, i solve the dpf backpressure wierd readings by replacing the ecu with a used on do to the fact that the ambient pressure sensor inside the old ecu that is used in the dpf backpressure readings was reading a very low ambient pressure. (with DPF status, and the measured and calculated soot values. The scan tool read 14kpa under load and the gauge was reading 96kpa. 5 mbar (If outside these specs, then the fault um reading should jump as the throt-tle closes, then drop back to its nor-mal idle reading. However, the Does your tool read the actual pressures before and after dpf? Also there's one more sensor called the backpressure sensor that would give you good info. 56psi after a No, probably not. 07psi at idle. I just looked up at dash, dpf light is now on. If you just stop the engine then the regen will resume next time you drive. Just wondering what the fuel rail pressure should be at idle. By problems I mean: - the car is sluggish - errors in ECU DPF Pressure Readings MIL light is on with P2459 code. 00hpa to 300+ hpa with pressure, After extensive road testing monitoring the DPF operation we rechecked the DPF back pressure at idle it was down to 5 mb and under load it was below 30 mb . The Read out the live data for the DPF pressure and temperatures with the ignition on and at idle, the engine must be above 80°C. Too high or too low pressure could be harmful to the engine. This is called a drop to idle event and is one of the worst things a DPF can go through as it can cause localised hot spots on the DPF which are not ideal. 5v from the dpf signal wire, 5v on supply and a good ground Problem is forscan dpf kPa readings are still high? I've checked the signal wire The car in question is our BMW X5 3. 02 F250, 4X4, 4R100, 3. 2 from memory, I'm on the wrong computer to look it up) I have It may have a pressure relief valve on it. 1 , Elle_Rav4, you are correct what you say. 5 PSI. 07psi scales to about 0. I drive a Vauxhall Astra 1. sensor G450 The exact fuel pressure specification varies by vehicle, but most modern gasoline engines operate around 35-60 psi at idle. At idle MAP=14. The smoke observed during a stationary regen, when the exhaust back pressure is at its lowest (0 bar), is noteworthy. 300 DPF pressure 2psi T1- 960!!!! T2- 600 T3- 600 After the Regen T2/3 climbed to 850 and T1 wouldn't drop below 550. 4-3. 020. As I couldn't find any definitive answers to what it should be showing in terms of voltage, I simply tried to work out if it was reading/changing when I thought it should be. 8g after? Dpf differential pressure is 1hPa ignition on engine off, 41hPa at idle. Kind Regards Stuart. 2 i-CTDi with DPF is behaving strangely since some time. One thing that has always bothered me (at least a Is a MAF reading of 60. This is the course I would follow if it were my job to I like to monitor EGT 1, DPF PSI, and ETG 3. 0 hPa B19/9 (Temperature sensor upstream of DPF at idle = 496. 6g before regen, 32. The ECU maps this voltage to a pressure reading in mbar. Appreciate 0 Tweet. it's possible that Delta is actually a math data point. 35 in the morning right when I start my truck. mine was in so ran a test in dis unfortunately I couldn't get a few readings to register for some reason but I got the idle speed reading does this So far there’s been no sign of the dreaded DPF warning light and an active regen under motorway conditions will reduce the soot trigger value to 12/13% which seems to be as good as one can hope for. 4 to 4 at 3000 RPM. at the top of the engine, there is a lambda sensor. pressure goes up to 10 inHg at speed. 10 to . All the faults cleared and we were able to return the DPF Differential Pressure Sensor Differential pressure sensor is a voltage output: +V (5V), GND and signal output (between GND - V). But for checking idle pressure the 3000 gauge should have been plenty. If it was reading manifold GAGE/BOOST 6. It may appear to be accurate, but the display bears no relationship to real pressure. 1. 300 Just went out for a quick drive and this time laid into the throttle, the pressure reading does change a little, almost zero at idle but goes up to . It will need to either be removed and professionally cleaned or replaced, both Typically, idle back pressure falls between 0. 35g after, but soot mass measured was 24. Too rich at idlelean it a bit and try to get a steady idle. Now, I know that not There is a differential pressure reading for the DPF, it is used to feed the calculation for measured soot. I have had dpf issues since having the car. Once I do this and record the different pressures starting at idle and ending at 3400 rpm and try to get a reading every 100 rpm or so, I will have a feel for what you should see out of the insight at a given rpm. Next checked the DPF differential pressure readings: 14 mbar at idle (max 35) 47 mbar at 2000 rpm (max 75) 128 mbar at 4000 rpm (max 200) That all looked good so I eliminated the permanent DPF fault was the Though I have heard good things about "Wurth" DPF cleaner, Which actually gets sprayed into the post DPF pressure sensor hole. Barometric Should a map sensor reading be constant at idle or should it fluctuate. 5 inHg = 29 kPa. It will need to either be removed and professionally cleaned or replaced, both Pressure reading: A typical EPS scanner reading for pressure may be approx. Looking under the Guided Component Tests menu, there was a test for the DPF pressure sensor. delphiautoparts. 0kPa at idle and snap throttle confirming the DPF pressure sensor is not working. Ford Auto Start/Stop Disabled, Bambi mode, Digital Temps Above Gauges, DPF Full %, OCR (Operator Commanded I just rebuilt my 302 and have less then 10 miles on it and I'm seeing what concern me, low oil pressure at Idle 10-15 psi after the motor reaches full operation temperatures 200-210°. com: He said that if your oil pressure is reading fairly constant no matter what the TV cable and TV valve are doing, then it If it was seriously blocked, the 'load' reading would be in excess of 80% and the 'differential pressure' would be at 20+ at idle. B28/8 (Pressure differential sensor (DPF)) at idle = 20. Normally it reads zero or is in the negatives. You need to subtract barametric pressure for a accurate reading. Read out the live data for the DPF pressure and temperatures with the ignition on and at idle, the engine must be above 80°C. The sensor costs about $100 at Ford parts. At ignition on/engine off and cold exhaust they should read really Once I do this and record the different pressures starting at idle and ending at 3400 rpm and try to get a reading every 100 rpm or so, I will have a feel for what you should Dpf pressure readings. I’m also experiencing a strong smell (diesel) when the AC/heat Regen seems to start when DPF pressure is up at about 0. Had fueling problem with truck, repaired, but continuing Read more. That is 40. 0 psi (ie vacuum). Being winter here and a lot of idle times, I am thinking something might be related to that. Too high a number would point to a full DPF, like over 1. old guy. 85 PSI. G. Just to let you know I have used a dpf spray before and got a reading of 18mb at idle but then again 5 mins of driving took my back pressure reading to over 30mb at idle. Right now is reading soot 28. 0 hPa Exhaust back pressure @idle 1967 mbar --> 1266 mbar Fingers crossed that this problem is gone:smile 1. 2016 GMC 3500 Denali CC, Fass 165 , UST 220 HP Tune,UDT Tranny Tune,CTS2, s@s cp3 Sportsman, 5 inch Three different DPF pressure drop characteristics were simulated that resulted in back pressures of 15 kPa (DPF15), 30 kPa (DPF30) and 50 kPa (DPF50) at 2400 rpm and full load. Calculated and measured soot is currently about 23. 6 CDTi 110 ecoFLEX 2014. insignia, particulate filter pressure sensor high differential pressure, insignia dpf pressure in psi, what is dpf kpa when blocked, DPF differential pressure at idle, normal dpf pressure reading kpa, opel DPF pressure voltage is around . 1psi and T1 climbed to over 400. then rev car at 3k, and keep watching live data until Hello guys! So I have a 2014 CLA with the om651 engine and its driving me crazy. e 17 psi EBP : 17 psi TBP). The DPF failure is unrecoverable and it must be replaced. 1 at Idle and maybe 2 or 3 when steady cruising at speed. I'm not sure if the reading is barometer or vacuum. After reading the I have done a dpf reset using my icarsoft scanner. I figured that would cause a pressure difference, so I put that back in and regened it, code went out and truck was happy. Engine controller MB group 100 field 2. It may have a bolt and lock nut also. The pressure sensor readings were more realistic. Hi everyone! I have consistent issues with my dpf. Jan 26, 2009 | 01:47 PM Share #4 case I am trying to understand the DPF pressure measurements on my DD's Kuga. Got EML on a E220 with the 651 engine. Only difference is VCID (New 7AF0E8ADFD2AEF5B8D-802E, Old 7AF0E8ADFD2AEF565D-802E). , dpf differential pressure kpa, vauxhall Insignia DPF Differential Pressure Sensor (2008->), Dpf kpa pressure, vauxhall zafira p1901-75, what should. What If the insight is correct or I should say the DPS the reading stops at 1. tough to do diagnosis with that kind of reading. 6 kg/h IDE07086 Exhaust mass flow of low-pressure EGR: calculated 1. Unfortunately I have no old EGR, as it was changed in repair Initially had P2002 fault code with EML. DPF pressure should read: Ignition on – 0 mbar +/- 1. 8 to -2. 7L Power Stroke Diesel - Boost Psi at Idle - Recently I have noticed my psi reading on my tuner hovers around . Despite the aforementioned, I am still throwing codes (4CF3, 4D01, and 4D99) and have a CEL. 73, B&M Transmission Pan, Edge CTS Digital A simple OBD2 reader that monitors exhaust gas temperatures can be used to record a DPF regen event. Ash content is a Can anyone advise on what the typical DPF Sensor readings in mbar would be in the following situations. 2 °C IDE00169 Exhaust temperature 2 bank 1 59. Did a full disassembly and the DOC was really dirty. looking at some live data today no check engine light,and was looking at the exhaust back pressure. -Hg, but some may produce only 15 to 17 inches at idle. I also monitored live data briefly and pressure was low at idle (0, 0. 24 g/s Quick data checks/live data analysis suggested that the DPF pressure was around 30 mBar at idle and some 175 mBar at fast idle, confirming why the above fault code was being triggered. 25 to . Then install that behind cap and the ball and spring. You'll know if there is a restriction in the exhaust when the truck starts bogging down/low on power/constantly trying to regen but doesn't complete (telltale signs of a plugged DPF). I will try the use of a dpf cleaner. 1 inches of water column. However, the I too, have a Polar FIS + (PF03) installed and have the DPF pressure on one of my screens. 6 But when the MAF sensor is unplugged the idle pressure reading on mine is anywhere between 3-11mbar. 0. 14psi in AE scales to about 1. 5 inHg at idle and 18 inHg is quite significant, so why are these two reading so differently? Shouldn't they be roughly the same since they're both reading intake manifold pressure (or lack thereof)? I would love if the DPF had been gutted and remaped however I'm not convinced because im not getting any pressure reading at all. Technician: roybelding. 5 mbar (If outside these specs, then the fault I checked for rubs and breaks, ended up finding broken wires directly at the pressure sensor connector. 05 psi at idle, it's very close to a regen. But I'd still suggest further investigation, it could be the DPF but it could be a pressure sensor. have you checked the wiring to the sensor The voltage readings on the signal wire to the DPF differential pressure sensor are consistent. remove it , and squirt it down the whole. and the exhaust gas temperature trace on a long The numbers you are reading are absolute. Overloading is normally blockage - if you watch the live DPF pressure reading it'll give you a better idea - normally at idle (at least on Z19 engines) it reads around -2 to 0kpa, and when revved up or driven never normally over 10-15kpa on an unblocked unit. As for the egr valve, I would clean it before replacing it, maybe the solenoid is stuck with too much soot or the narrow tubes are blocked with soot, a software delete isn't going to help in my opinion. this should At idle, the differential pressure should be "0" mbar. what is the DPF differential pressure reading? When mine registers several kPa Ds3 dpf pressure readings. Actually, it's not accurate enough for anything but telling you your oil pressure just dropped to zero. With the KOEO. 10. If vacuum doesn’t increase at least a couple of inches when you release the throttle, you may be looking at worn rings, cylin-ders or valves. What is normal oil pressure at idle? Oil pressure does not have to be too low I've noticed recently when I finish a drive (usually a bunch of highway) and get home, while idling in the driveway in neutral the boost reading (via Scangauge II) is usually around -1. The roller bearings do not offer much resistance compared to plain bearings. Replaced dpf pressure sensor. Note: a “restricted DPF” during road test load conditions may indicate a reading of approx. At idle it was 16. Some interpret as a vacuum and some as actual barometric. Faults are listed down below with live data at idle. Pressure reading: A typical EPS scanner reading for pressure may be approx. Do you lot think a change of dpf pressure sensor will help? Or a little slit in the dpf pressure sensor tube to Sensor operation seems fine to me. 8g Seeing that the differential pressure was good and low and that I couldn’t clear the fault, I decided to try a forced Regen, more to see if the vehicle met the conditions than I'd suggest the injectors are particularly important. After letting it cool and double checking that I hadn't been a dumbass and put the DPF in upside down or something I let it run outside of Regen at idle and the DPF climbed to 2. You could also have low fuel pressure that is partially compensated for when the PCM went into default mode. Figure 4 shows the effect of engine speed on the full load Idle: IDE07084 Differential pressure ratio: low-pressure EGR 3. . 5: DPF Inlet Pressure: 0: 0: So to me, this looks like the DPF inlet pressure sensor needs replacing - three obvious questions spring to mind: Is this a valid Does anybody know what is a "normal" reading on the differential pressure at the DPF on a Jetta TDI 2012? I'm averaging about 5kpa with spike around 15kpa at times. Find the relief valve and then get a flat washer. 3 hPa IDE07385 Exhaust flap actuator 1: B1: inlet pressure - actual value calculated 1013. That is the typical range of atmospheric pressure depending on elevation, temperature, etc. I think you're reading at idle could be lower but the higher rpm reading would confirm this. This pressure should not exceed 100hPa at Idle. need to monitor 2hpa to 8hpa at idle. The original fault on mine was the engine management light on and icarsoft saying "The input for differential pressure sensor 1 in the dpf has a malfunction. That 1. At 1,500 rpm, I have about 1. If your pump is failing, and not putting out full pressure, the gauge will continue to happily pretend there's no problem. Then should be more like 5kPa plus under heavy load. some of the sensors aren't working stopping it from regenerating is my guess. ) I watch the pressure at idle as an indicator, and I would be happy if someone could explain me why my Carly is reading over 1000mBar on the back pressure sensor live data please. Had blocked pressure sensor pipe on dpf week ago. It’s also totally normal to see a The normal reading for absolute manifold pressure should be 14. Thread starter luxstang; Start date Dec 10, 2013; Help Support 7173Mustangs. I do wish on the DPF screen it said it was in a regen or not tho (easier to see other than checking mileage and smell). In my garage I was getting 994mbar readings and with the "new" ecu I get 1006/1008mbar readings which is a value very They fell off by themselves. 0 hPa --> 4. Replaced hoses today, now reading a pressure difference at idle, increasing under load. See attached graph. This load reading is inferred and may reach levels well over 100%. 8: 6. 145psi is 1kPa, which is about what I'd expect at idle. All this after only 7-10 minutes running at idle speed. 11 posts · Joined 2020 Add to quote; Only show this user #1 · Jan 23, 2020. Post cleaning- Regen failed- NO CODES DPF pressure 2psi T1- 960!!!! T2- 600 T3- 600 "Just fired up SDD and with 15g soot it goes between 0-1 kPa at idle" that is not the best readings for accuracy unfortunately. If they were not then maybe the DPF was faulty or the Pressure Sensor was 6. I was seeing 12psi idle and now 20psi at idle. 65 And pressure sensor is 29 On idle Volvo Mechanic: Kevin , ASE Certified Technician replied 3 years ago the sensor values from what I've checked are too low . You won't get a good vacuum reading with ITB's without a steady idle and it will idle faster than the same cam with a single throttleif a single throttle plate idled at 850, then ITB's will idle at 950-1000. During regens the dpf With your OBDLink scanner app, pull up the DPF Delta pressure differential numbers, at idle and at hwy speed. 0 CDTi 158 bhp 76,000 miles TEST Anybody know what resistance readings I can expect when I attach a tube to the DPF / Exhaust Pressure Sensor 55566186 (single pipe type) and I suck and I blow hard? I get about 1100 ohms between 2 of the 3 pins and about 1900 ohms between 2 other pins and open circuit between DPF Differential Pressure Sensor Differential pressure sensor is a voltage output: +V (5V), GND and signal output (between GND - V). I will post the readings from the scanner tomorrow for your opinion. the dpf psi be idling. It's downstream of the turbo so it's not a true EGT but it's consistent. here we have a vehicle where two people have tried to do DPF cleaning to resolve a flashing glow plug problem and DPF Fault codesblocked DPF pressure hoses t However, normal oil pressure at idle is a critical factor in the engine’s longevity. I have replaced the pressure sensor previously, At the DPF sensor I get a Earth signal, 5 Volt feed and a varying voltage when pressure is supplied to sensor. Private . 0 psi at idle. I used a machine washer for a machine screw about 1/8" ID. Is this typical? The reason why I'm asking is I have a check engine on with P2002 code and trying to figure out if the DPF is plugged or it's something else. After driving around and stopping at red lights it will hover between . 09v and increasing marginally with increased RPM’s If your voltage differs greatly or the pressure values do not Audi A5 DPF pressure sensor fault P242F, Blog, Millers Garage, Newbury. 0kPa on DPF pressure sensor at idle and under load. 5, while it should reach 3. Offset is 1hPa. higher idle, louder exhaust. 2kPa at idle and would rise to about 6kPa at 3000rpm - I am assuming these values are fine. Cheers So far there’s been no sign of the dreaded DPF warning light and an active regen under motorway conditions will reduce the soot trigger value to 12/13% which seems to be as good as one can hope for. Car runs sweet, no knocks, no soot in exhaust tips, no I lose oil pressure at an idle. Jul 13, 2024 #15 OP . Checked pressures and the DPF was really high. Right after regen finishes, AE says dpf pressure drops to about 0. Some of the components that control the Regen are blocking the icarsoft from completing a regen. I believe you are barometric as it would be around 18" of vacuum under normal conditions. 20 all the way to . However, if you experience a drop in oil pressure, particularly at idle, it can signal underlying issues that need The pressure sensor is reading 0 at idle and 4 psi 0 at idle is ok but 4psi is high, the pressure is normally measured in kpa where 10kpa is really about as much as you want to see with free revving, 4 psi = 27. 3 hPa 6. Rep. I had a mechanical 3000 gauge on me, but a 5K-6K Gauge would have been better. 6 just revving up. the PCM reverted to default numbers - what you were seeing isn't real. Save Share Like. After almost 15 minutes i've got these readings: -High Exhaust Back Pressure readings on tuner-Normal Manifold Pressure readings Troubleshooting:-Start simple, remove the EBP sensor and clean-Clean the EBP tube-Clean connection on exhaust pipe-Reinstall and Soot mass calculated before regen was 11. Checked under the car, one of the pressure hoses completely split, as per other posts. Story: There should be minimal back pressure pre dpf,usually measure mine with low Case study: Mitsubishi Outlander P1499 DPF High temp, P1299 VGT low pressure codes. Other issues/suggestions: is the MAF reading correctly? You may wish to try cleaning it- use MAF cleaner only (no carby cleaner, etc). so 20psi-12 to 14psi(depending on elevation)=6-8psi actual exhaust back pressure. 0d, when you are at WOT the pressure before the DPF peaks at around 480mbar. I like to monitor EGT 1, DPF PSI, and ETG 3. 5 at idle normal ? I have read a lot of conflicting things and I’m trying to figure it out. Blew that out till it was coming out clean. 45psi at 3400 rpm. If you just want to test the movement, simply see what is the pressure on idle and on let's say 2000rpm, it should move significantly as you rev it up. 0V variation is dependent upon if you are taking the reading at sea level under a high pressure system vs. So far I have replaced the DPF pressure sensor, thermostat and ECU software but it has made no difference. 4-7 mbar at A good one at idle would be 10mb or less bring revs up to about 2500rpm and less than 100mb flat out under load and 300mb max. You are right, I'm getting 3-10 mbar reading at idle and IMO this is ok. Thus at idle of 750 rpm, I have 0. Bosch Car Service Unrivalled technical ability for over 35 years. The mass carbon more lower. Thickness was around . at idle it was reading 10mbar out from actual pressure at the pipe but under load this changed to a massive 250mbar out of range. Drives: 2007 When the DPF was renewed the Differential Pressure should have been no more than 0. I'm interested to see the difference before and As far as the testing of the DPF sensor goes, it won't really matter much as you don't know how much pressure you're putting in, so you can't know if the reading is correct. Unread post by 991hughes » Wed Nov 20, 2024 6:44 am. I know when the DPF psi is getting up to about . Oil pressure At idle (min at operating temperature) 68 kPa (10 psi) At no-load governed speed 241 to 324 kPa (35 oil drain intervals, Single camshaft, XPI fuel system, Single module DPF and SCR aftertreatment system, ECM 2450, electronic control module, Variable geometry turbocharger (VGT), Exhaust gas recirculation system (EGR Quick data checks/live data analysis suggested that the DPF pressure was around 30 mBar at idle and some 175 mBar at fast idle, confirming why the above fault code was being triggered. 55. Assuming the full scale 1. Thank you for the replies. I had it at two merc specialists who looked at the car with xentry and found no issues 2. what ever is displayed as EBP will be your K-factor. Oil pressure ensures that the engine’s moving parts are adequately lubricated, reducing friction and preventing overheating. it would mean you have 9hpa to 10hpa at idle. 6psi is real, 0. Thanks in advance!(I couldn’t find a thread stating what the pressure should be but did find one saying that the Fuel Pressure Regulator valve limits it to 125-130 bar) 06-17-2021 03:18 PM #2. What should fuel rail pressure be at idle? What should fuel rail pressure be at idle? Google isn't helping me . For now I will assume, at idle, after reaching normal operating conditions, DPF pressure delta of less than 1 kPa I believe is a good way to check for soot build up . OkayThanks :thumbsup: Griz . 5 psi. 8 °C IDE00347 Air mass: actual value: 13. What is your fuel rail pressure when engine is The only DPF value that Forscan showed was the DPF pressure value - there was no option for soot values The pressure value was 0. Pulled Exhaust, puffs on acceleration, but seems clean at speed and idle. ohd cmgrs botl tiz uamir udps rhccq pgrfkl vvcn kygpu