Brando

Ok here is the scenerio. Car starts missing on the rear center cylinder. I change out all the plugs, wires, cap, and rotor. Still missing. I then change out the injector with a remanufactured one. I think I moved the new injector to the front center for reasons I dont recall. I also took the opportunity to replace the intake plenum seal and all the rubber seals on all the injectors. Put it all back together and it runs great!! Ran it all day long going places with no problem. Let it sit for a few days and start it up and it runs fine once again. It sits a few more days and now when I crank it up it is missing again on the rear middle cylinder. Getting spark at the distributor but not affecting the idle when I remove the plug on that one. What could it be? Do you think I just had another injector go? The car is a 93 Es with 200k on it.

GEORGE_JET

Run a compression check. Also check the injector connector.