Over-revving and high idle on Mk1 Focus
Hi guys,
For about 3 months now our 70k mile 2002 1.8 Zetec has been exhibiting some irritating an dangerous characteristics.
For instance, if you want to use the gears to slow down, the revs rise to meet the road-speed, but fail to drop and thus you don't slow down. I think related to this is: If you're coasting up to a set of lights with the gears in neutral and you rev the car to a peak of 3k, the revs will sit at ~3k until the car has stopped completely at the lights.
I have replaced the Idle Control Valve and reset the ECU (which cured it for about 3 days!) but it seems to have come back and I'm at my wits end!
Any clues as to what might be the problem?
TIA.