Quote:
Originally Posted by ianrmz250
I have only just found out last week via my mechanic that our 2011 CRD O2 sensor (exhaust down pipe ) doubles up as a temperature sensor as well.
It is a 6 wire sensor from the exhaust down pipe to a connector in the engine bay by the EGR cooler, very easy to change.
The sensor was measuring a constant 5 volts telling the DPF to regen when it was not needed.I also got the 2002 code on one occasion.
My mechanic said the 3 temp sensors associated with the DPF are O2 sensor, sensor in DPF canister and sensor in exhaust manifold pre turbo.
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Hmm that's interesting.
Have you just had your sensors replaced, and no more issues since?
http://www.wk2jeeps.com/tsb/tsb_wk2_1809415.pdf This service bulletin explaining the same issue asks for these to be replaced
> 5146662AB Catalyst Temperature Sensor 1
http://www.ebay.com.au/itm/111832533...%3AMEBIDX%3AIT
> 5146661AB EGT sensor 1/2