Any you guys got a suggestion on this? The car upon start idle ok for 30-60 seconds. It then starts to idle between approx 500-800 rpm going up and down. This can happen at any time. It also suffers cut outs when coming to a stop. I have changed all filters inc fuel, I have recently had the vehicle worked on by a so called "fiat specialist" (not dealer) who has replaced the cat 3 times cos each 2nd hand one he has used has either been scrap or put on a complete exhaust that was scrap. If cat gone/faulty would it cause this problem? I ask this cos I have a BMW as well and on one of their forums it suggests this as a possible fault. I have also had this prob a while back, a quick blast of redex seemed to help for about 2 weeks. I have cleaned the carb out quite a few times actually. Does anyone know the location of the ICV on these? Would a dirty ICV be a possible fault? Any suggestions on how to rectify this would be gratefully received.

May be something to do with the idle stepper motor and the engine management system.

miine can be eratic and refuse to idel at 1000 sometimes.

I would put my money on the lambda sensor or the EGR valve (if it has one).


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Evil-Punto AKA Evilution.