hi,ive just done a resto on my 2wd sapphire. ive got it running but with the idle speed control valve connected it revs up to about 2000 rpm, its like the idle valve is just fully open when pugged in. Apart from that it idles fine unplugged any ideas would be great cheers.

 

Try cleaning the connector. Sometimes I've found disconnecting the connector once the car has started and then reconnecting it cures it. Failing that you need to dismantle it and clean it out....

 

i supose it is working its just as soon as you plug it in the idle just goes staight up and stays therte does not hunt just revs its head off ive tryed another ecu and its still the same plunger seems free on the valve

 

managed to fix it it was the tps sensor adjusted it and its fine now