Technical Sei running lumpy

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Technical Sei running lumpy

ailwynj

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May 17, 2005
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I have a 2001 Seicento Sporting that I purchased about 2 months ago and I am having a few little problems that I would appreciate some help with please.
1. After the car comes off choke in the morning I drive about 30 miles so the car is nice and warm. The problem is that when at traffic lights or junctions the car seems to tick over lumpy so I keep the revs up at about 1000/1250 rpm. The ECU has shut the engine down once and I had to get the RAC out. They diagnosed 3 faults, 1 was a misfire the other 2 were related to the ignition coils. I therefore took it to Fiat and had both coils replaced. The problem is still there...
2. All the time from 40mph upwards there is a vibration/shaking through the car which it seems to me is coming from the rear end of the car as I can feel it through the back of my seat. It feels like the wheels need balancing but I had this done about 3 weeks ago.
:bang:
Any help appreciated as I it is a great little car otherwise...
 
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