I have a 1994 Mighty Max that just died a few months back. While cruising along at 55MPH on the way home she just dropped out no pull. After towing home she will turn over and fire but not run, even trying to feather pedal. I checked/verified all timing marks, new plugs early last year with wires and distributor cap/rotor, spot on. Removed TPS, IAC, throttle body from another Mighty 2.4L and no change. Verified fuel pressure is in spec. And no change as well. ECU swapped with known good one and no change. (Should this have been grounded to function properly? I didn't actually bolt it in.) Also temp sensors are in spec. (Both ECU one and A/C one) CAT is clean as I dropped it to check. As you can see I am at my end now and very close to just wanting to blow her up! Only thing left to check is fuel rail (injectors, etc.) and/or possible vacuum issue. Please advise if you have had this experience before.
Bookmarks