anyway, i noticed a very faint humm when listening around the top of the motor and i found if i unplug the iac valve, it stops. and if i plug it back in it humms again. while doing this the battery volts goes from 12v down to 11.95v and back up when i unplug it again. so it seems to me that somthing is on that shouldn't be. now my question is should i have any power to the iac valve connector with the key off? i'm getting 11.5 volts at the connector on the left and middle wires when looking at the connector. after messing with it for about a half hour i checked the volts at the iac connector and got barely nothing. then after turning the key on and back off i got 11.5 again at the connector.
so is this normal for this to have power for a while after the car is turned off?
Edited by pamike, 18 April 2012 - 04:55 PM.