plumo57

Okay, 86 Pickup, with 22RE. Really rough idle. It drops to like 350rpms, then jumps to 700, and back... sometimes. Sometimes it idles at between 750 and 850 back and forth, which is annoying but driveable. The condition does not seem to change according to engine or outside air temp. while driving it feels slightly rough, but not bad. The truck has decent power etc.

Checked the AFM and it checked out. checked the TPS and adjusted it to the best of my ability. Plugs, wires, cap and rotor are 5000 miles old, and plugs look good and i double checked that they were properly gapped. vacuum lines are all in place and seem to be in good shape athough i don't have ether and didnt do the spray test i've read about. engine was rebuilt about 5000 miles ago by a decent shop that i trust. 02 sensor is 100 miles old. checked the injector wiring the best i could with the manifold all still attached to the truck.

Finally got around to pulling the codes, and got code 2, 4, 5, 7, and 8. Not quite sure where to start and would love any suggestions. Feel free to call me a moron if i missed something easy.

plumo57

Oh yeah, timed it too, as best i could with the erratic idle. It seems pretty close, but its hard to tell with the idle jumping all over the place.