Citroen C Crosser 4x4 2,2 Diesel - Car Hesitating on reapplication of throttle

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Fri 5 Apr 2013 22:32
Citroen C Crosser 4x4 2,2 Diesel - Car Hesitating on reapplication of throttle - SteveG1234

My car has been hesitating badly since I misfuelled with unleaded. I only drove 200m before parking up to go shopping - afterwhich the car would not restart. Called out the Fuel Doctor who completely drained down the tank and got the car started on diesel again. It was since then that it has started to hesitate badly at speed on reapplication of the throttle after periods of decelleration or coasting. Have had 1.5 tanks of diesel since the misfuel incident.

I have had the fuel filter replaced (Genuin Citroen) but no change in symptoms. Local garage can't find any fault codes and could not replicate - however it does it regularly for me albe it less often on some routes than others.

Any thoughts?

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Sat 6 Apr 2013 09:07
Citroen C Crosser 4x4 2,2 Diesel - Car Hesitating on reapplication of throttle - Simon
Are you sure that it is related to the mis-fueling incident?
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Sat 6 Apr 2013 21:43
Citroen C Crosser 4x4 2,2 Diesel - Car Hesitating on reapplication of throttle - SteveG1234

Not at all sure, but seams suspicious as only started noticing it after the incident.

The Fuel docctor guy did have trouble refitting the air filter in the housing after he sprayed something into it to help get it started. Could that be something to do with it If that has not been refitted properly?

Have bought some Diesel detox to try and clean the fuel system as something else to try.

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Sun 7 Apr 2013 12:51
Citroen C Crosser 4x4 2,2 Diesel - Car Hesitating on reapplication of throttle - dieselnut

It's possible the Fuel Doctor disconnected the MAF when he sprayed Easy Start into the trunking & hasn't reconnected properly, although would have expected to see EML light come on. Also the spray may have affected the MAF but you would need a diagnostic test to check that. Could also be a sticking EGR valve, but again would have expected EML light up. Check that your brake lights are working properly & not slow to turn off after you release the pedal.

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Mon 8 Apr 2013 00:01
Citroen C Crosser 4x4 2,2 Diesel - Car Hesitating on reapplication of throttle - SteveG1234

Thanks for the advice - the MAF was not connected properly and the hesitation has stopped since I clipped it back together properly. Hope thats the end of it!

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