My car basically idles at 1000rpm when up to temp.
I did the unplug IAC valve check and it seems to be working. When the car is warm and I unplug the connector the car idle will increase to 1100-1200rpm. When I plug the connector back in it drops to about 800-900 which is within spec. The weird thing is once, I disengage the hand brake, the idle will increase to 1000rpm and then stay there. It will not drop back to 800-900rpm range whether I'm in neutral or when I clutch in when driving. Any ideas what could be causing this?Another kinda odd thing I found while testing this was that if I'm in 2nd gear and I let off the gas and just let the car roll it will stay at 1000rpm and won't stall.
I don't think this is normal also.Let me know if anyone has had similar experience and how to fix.
Thanks,
Jim