I have eliminated all my check engine codes. The truck is running way better, but I still can't get it to idle between 600 and 1200. Maybe I should change my plugs and plug wires. Although I put autolight about 1 1/2 years ago.

 

ok, I am still having an idle problem. I don't understand why the truck would idle fine at before replacing the knock sensor. I am quite sure everything is hooked up correctly. I notice some slack in the throttle cable where it hookes at the plenum. I'm sure this was already like that. I can get a cold idle of 750-800 but warm it drops to 5. If I adjust the idle screw in it raises to about 1100 to 1200 and then drops and raises all on its own. It will drop to around 600 and then idle up to 1200 or 1300 by itself. It is like it gets to sensitive when idled up any higher than 750.