Limp Home Problem 2.2 Litre Hdi In Tassie

[Ceenine]

My 2007 2.2 litre HDI sedan goes into limp home mode (LHM) normally at start up. To fix I turn off engine for approx 25 seconds and this fixes problem for the next couple of start ups (next day say). I have employed Autel diagnostic tool which throws up the following codes:

1351 Preheating relay circuit:Relay controlled and plugs never supplied

0487 Mixer supply position copy signal :EGR throttle opening too low

2100 Motorised throttle control: Short circuit between the wires

2111 Mixer butterfly position copy signal: Butterfly stuck during post operation

 

Looks like a close examination of the mixer butterfly valve needs a good look at. Has anybody had similar problems . Unfortunately living in an area remote from a decent dealership (country side in Tasmania) I don't have expert help close to hand. 

 

The car rarely goes into LHM on the move, normally on startup and probably every third startup. Otherwise car performs well. 

 

By the way, the warning message is depollution system faulty and speed control faulty. When car doesn't go into LHM, only the depollution warning comes up. Has been like it for 6 months. 

 

All input welcome

[paul.h]

Maybe have a look for water in the ecu connectors - have a look at this http://www.peugeotlogic.com/workshop/wshtml/engmanag/throttle/throttle2.htm

[Ceenine]

I believe that I have tracked it to broken teeth on the fro plastic gears within the throttle body (air doseur) which twists the butterfly. I believe this is why the LHM comes into effect at the start of  a journey. I have ordered a new one from BestParts in UK. I will report if this fixes the problem.