Just finished converting my lads 1.0l Corsa B to 1.6l, not the easiest job but sorted bar one problem. It starts but immediately revs up with no throttle and won't ease off.

I've looked at the idle position valve but can't really tell if its working ok.

Any suggestions??

Cheers

Steve

An air leak between somewhere between the head and the TB?

Air leak. There will be a pipe of that you have missed.

quote:

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Originally posted by big_wasa
Air leak. There will be a pipe of that you have missed.

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Yup - check your vacuum pipes...

Thanks,

Had a look over the vacuum pipes, nothing obvious missing. We've fitted an after market plenum chamber which looks to be seated ok but I'll check again. The car really does rev high, is it likely that a misconnection rather than missing a hose could cause this??

Cheers

Steve

Is it fly by wire throttle??? If so I seem to recall that there may be a setting up process