Originally Posted by spun360
run the truck in the complete darkness! look for blue sparks on the wires. sray lightly with water. you might be losing voltage with bad wires.
run a few resistance tests on the coil. do you have a haynes manual?
with a cam! you will need to adjust the idle speed! try turning the set screw 1/8th turn at a time. i've adjust mine several times. i do it by ear, but a tech will tell you theres a special number in the pcm that your looking for. "iac counts" thats the term. BA! if i change the pcv- i adjust the throttle stops. if i change the air filter- i adjust the stops. yup! i just spent $1k on the exhaust- i adjusted the throttle stops. let me know how it goes from there.
My throttle stop screw hole has a metal plug in it? Do you just pop that out or something? Damn thing is in there good.