My girlfriends MK3 (?) 'N' reg Fiesta is playing up- wonder if anyone has any suggestions as to what's wrong with it.

At idle if you blip the throttle, after you let the pedal return, the revs rise for a short period (~ 3 secs) before dropping back.

Also, when driving the revs rise on their own.

It's the 1.1lt HCS engine and is the single-point injection version.

She's nagging me to look at but other than checking the throttle cable itself isn't sticking (it isn't) I don't know where to look next.

Thanks for any help!

James

[Edited on 9/7/04 by James]

idle speed control valve is full of crud,its under the manifold held on with 2 8mm headed bolts,only way into it is from underneath

Thanks mate!

Will give it a go Sunday. Is it a case of cleaning up the valve or should it be replaced?

Thanks,
James

carb cleaner will do it,nice job to do tho