Technical Cinquecento Sporting Misfire

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Technical Cinquecento Sporting Misfire

ratfink89

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Jun 9, 2014
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Hello all.

My wee cinquecento sporting has a bit of a misfire, mostly occurring when the engine is under load, will last a few seconds and then I'll have power again. it also Idles at over 2k when cold (settles to sub 1k when warm).

The management light doesn't come on when it misses, which i thought was a bit odd (the light comes on when the ignition is turned on, and goes off after a few seconds running.)

The engine came from a running car, but i bought this car with a seized cam, so i don't know if this is an old issue, with this chassis, the wiring is an eyesore, but looking at the other cinquecento looms, they all look the same!

I can't find any obvious air leaks, the HT leads are new as are the spark plugs.
most of the intake snorkel is missing, so it could be pulling in warm air, but i don't think this is the cause of the issue.

Any pointers would be appreciated
Cheers
 
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