I measured the idle control valve and it is 10 ohms. When I scan the codes I'm using a Snap-On scanner that takes over the truck while it is running. I have only used this when the truck is operating properly, when it is running bad I haven't had the scanner. I cleared the 44 code and it came back. I have unplugged the control valve when it is running good and when it was bad and only noticed a lower rpm in both cases, it did not seem to affect how well or poorly the truck ran. I have checked the vacuum lines, smog pump, air canister, the thermactor air bypass and diverter solenoids, and throttle body. I also pulled the wire off of the EGR valve and saw no difference but I thought it was weird that I didn't get a code from that. The idle air control spacer is off now but when it was on it did idle the same, I did mess with the adjustment but it did not help the problem it only raised or lowered the idle.
Wednesday, September 9th, 2009 AT 3:55 PM