C3 1.4 Hdi Fault Code P2137

[DickieG]

A friend has had the engine management light illuminate of her 2004 C3 1.4 HDi, I gave it a Lexia session and found three codes, the first two; P1357 Pre heater relay circuit plugs not supplied and P0215 Ignition system supply relay circuit stuck were shown as intermittent and having cleared them they remained cleared for the duration the car was with me. The third one one was shown as permanent; P2137, Accelerator pedal 1 signal coherence with the 2 accelerator pedal signal.

 

Having cleared the fault it reappeared a few minutes later whilst idling. When reading parameters and pressing the accelerator pedal the % movement appeared smooth and linear on Lexia both pre and post fault clearing hence I'm looking for further pointers as I've never dabbled with a C3.

 

Has anyone got any clues other than there being a dodgy connection 'somewhere' i.e. where exactly etc. Normally I'd have a good poke around but as I'm semi invalided ATM with a slipped disc, crawling around in footwells in the hope of finding something isn't really a sensible option for me, just hoping someone has somewhere to point me towards.

 

I have had one suggestion of replacing the accelerator pedal (the sensor is attached to the top of the pedal) I'm wondering whether anyone has experienced a similar problem?

[paul.h]

I replaced the accelerator pedal on our 2003 1.4 petrol a few years ago since it was difficult to smoothly control the revs below about 1500 (from memory) when setting off but the engine management light did not come on. It was only about £40, was in stock at the dealer and I think some had been replaced on early cars due to problems. It is held by 2 nuts and the wiring connector and easy to replace, although maybe not with your back problems but your friend should be ok.