Dpf back pressure readings. If your pressure readings are correct you have a problem.
Dpf back pressure readings The remaining DPF life is a calculated value based on a number of factors. 0d, when you are at WOT the pressure before the DPF peaks at around 480mbar. When the DPF differential pressure sensor stops signalling the PCM to regenerate, the DPF can become completely obstructed by contaminates and fail. What to look out for in a failing DPF differential pressure sensor. However the ECU still wouldn’t let us do a forced regen. If your pressure readings are correct you have a problem. Feb 13, 2019 · The 452A code is an information code only for BMW service to advise the customer that the DPF is approaching it's calculated end of life and they should make an appointment for a $4800 DPF replacement. The 3 readings above confirm the usual 480A & 481A DPF fault and Exhaust Back Pressure faults, sadly all too common. . Here are some signs that indicate the DPF is not regenerating properly due to the DPF sensor failing: Poor engine performance Oct 13, 2015 · The car in question is our BMW X5 3. Search My Stuff. The code DOES NOT mean that the DPF needs to be replaced immediately. 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. Jul 16, 2020 · Exhaust back pressure 3210 hPa (47 psi) Differential DPF pressure 119 hPa (1. What's New 3 12 24 72. DPF Differential Pressure reducing but still much to high to enable a Forced Regen. Pvapour. We reported our findings back to the customer (who incidentally did do a lot of short trips in this car) and suggested we could either remove the DPF for manual cleaning, or suggested he try a long drive. Dpf back pressure. 7 psi) A local shop (good mechanics but not Sprinter experts) installed the new DPF differential pressure sensor while trying to diagnose the problem, so this weekend I'll crawl under there to make sure the hoses are properly clamped and not leaking. 8,981 posts. My Profile My Preferences My Mates. Original Poster. As you can seewhen looking at the back pressure result below it was non too promissing. ymorpsetivzyhicolrwywxqekfcmoamjtyxlulxgfqhikvallbswd