Hey guys...
1984 4 banger.. Runs fine most of the time. Randomly jumps idle up to 2200-3500 RPM. STAYS at that idle indefinitely. Checked for vaccum leaks, none to be found. Check engine light does not come on when this happens...
Basically, when the idle jumps, if you press the gas, the engine spits and sputters and nearly dies, then it picks up to a higher RPM until you let off the gas. Driving down the highway, if the Idle jumps, the engine starts to buck and acts like it is misfiring. (Problem started after a tuneup with new plugs, cap, rotor and wires. Also has a new Ignition Module and Coil.) If you shut the car off when the high idle starts up, you can't get the car restarted due to heavy flooding.
Checked the codes, and the O2 sensor was the ONLY code set. 13. Changed the O2 sensor, and reset the computer. Same problem. I do not want this damned thing to Nickle and Dime me to death. I just need it running.
Any suggestions?
Oh, and I sprayed Starting Ether around the Intake Manifold where it attaches to the head, the base of the TB, and all around the vaccum hook ups... I KNOW there is no vaccum leak.
