Technical Seicento idling problem

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Technical Seicento idling problem

danny2009

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Joined
Mar 17, 2010
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South Yorkshire
I picked my seicento up the other day and it has a missfiring / hunting problem on idle, i have no rev counter as its the 899 S but i can tell the revs are droping and picking back up

its fine once going but on idle it does it,

its been serviced recent (plugs leads oil ect) so im thinking it could be something to do with the coil pack ? or is there a ICV on these

any help welcome :)

Thanks

Danny
 
It is an air leak, either the valve as mentioned or one of the gaskets between the throttle body and the head.

Just had this on my sons sei and it proved to be the gasket on the bottom of the spacer block beneath the throttle body. Nice smear of hylomar solved the problem...
 
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