Goddy454

Could use a little help with a regen issue. Truck is calling for a parked regen and it fails. The regen starts but after about 5 mins the idle becomes lopey and the exhaust temps only go as high as 360. While viewing the data in PTT i see the turbo only reaches a maximum speed of 22K RPMS and my EGR Diff pressure reads 1.5. With the truck at normal idle the turbo speed is 0 RPM. Besides a faulty turbo is there anything I should look for that cause the the turbo issue, and what can anybody tell me about the EGR Diff Pressure. I dont think that is normal, I did swap the sensor and it made no difference. Could my EGR valve be malfunctioning too. Thanks for any help anyone can give me.

I did forget to add to my post that i did change the lift again a week ago but to no avail the fault still exists.

Has anybody experienced a similar problem and what were your findings? I have a 2011 GU813 with an MP8 and I am getting an intermittent low fuel pressure fault causing a driveability issue. I had a fuel problem with this truck several years ago where i replaced the lift pump, overflow and aeration valve. At that time cant I recall if the problem was intermittent or constant but anyhow the issue was solved with replaced parts. I followed some posts on here where it was recommended to look for dirt by the ECM cooling plate banjo bolt. I did this and found no evidence of any dirt or debris. I opened up several other fittings to check for debris and found nothing. I looked in the fuel tanks and I do not see anything inappreciable. I removed the aeration valve and all appears to be ok, i will remove the overflow valve and check that tomorrow. Can anybody throw some more ideas at me or tell me if they had a similar experience. When I hook up my laptop everything is ok because the fault is inactive. Thanks in advance for any help anyone can provide.