Hi all, I have a problem with my 2009 fiat 500 1.3 multijet that I hope someone can help with.
The car will start fine and goes well for a few miles then it loses power and runs rough. At times it also emits huge clouds of grey smoke.
When idling it will be smooth for a bit then rough for a bit and so on, almost cyclical.
Oil and filters have been changed and recorded in the ecu.
I have replaced the injectors with known good used ones and coded them with mes.
I have also replaced the map sensor and the turbo cartridge.
The turbo actuator is working fine if I use a mitivac on it and you can hear the turbo when you drive.
There are no error messages on the dash and no errors recorded in mes.
When it runs rough the fuel consumption figures on mes go through the roof and the correction figures go all over the place on the injectors.
Turbo boost actual is a bit higher than desired boost but not much.
Fuel pressure readings are fairly consistent with desired pressure.
Seriously doing my nut in and starting to look for a box of matches so any advice would be much appreciated.
The car will start fine and goes well for a few miles then it loses power and runs rough. At times it also emits huge clouds of grey smoke.
When idling it will be smooth for a bit then rough for a bit and so on, almost cyclical.
Oil and filters have been changed and recorded in the ecu.
I have replaced the injectors with known good used ones and coded them with mes.
I have also replaced the map sensor and the turbo cartridge.
The turbo actuator is working fine if I use a mitivac on it and you can hear the turbo when you drive.
There are no error messages on the dash and no errors recorded in mes.
When it runs rough the fuel consumption figures on mes go through the roof and the correction figures go all over the place on the injectors.
Turbo boost actual is a bit higher than desired boost but not much.
Fuel pressure readings are fairly consistent with desired pressure.
Seriously doing my nut in and starting to look for a box of matches so any advice would be much appreciated.