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1.4D low boost pressure. High DPF diff pressure?


Technorunner76
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Hi all new here and tried to search for this but did not find anything!

I have a Auris 2011 1.4D VGT turbo. It has run 398000km= 247305miles if i converted it correctley 🙂

I bought it at such a  low cost im almos ashamed from a co-worker with the fault code low boost pressure and in limp home mode. I drove it for an hour home. when i got home and started it next time it was out of limp home and it worked as it should. I filled it with HVO100 and drove like 10km @ 3900RPM x2 to burn off the DPF wich i suspected was the main problem. It seems a little out of power and takes a litle more fuel then expected. So i borrowed  a friends hand held computer with capability to realtime reading.

At idle with warm DPF it shows 4.0-4.5KPA Differential pressure over the DPF is this high or normal?

At full throttle at 4th gear going slightly uphill 3000rpm isch i read:

50kpa DPF diff. pressure

225KPA request turbo boost inc atmospheric pressure

MAP pressure 180KPA peak and holding at 178KPA boost ink atmospheric pressure

So messured is about 40 isch KPA to low.
It feels like the DPF needs A cleaning but it would be great if someone here knows the values the DPF diff pressure should be 🙂


 

 

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Can’t help you with the pressure figures Andreas, but almost 250,000 miles is amazing.

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