Leaderboard

I have reset the TPS to .42 and it seems to idles better. This afternoon I am taking it to a cruise and will report tomorrow.

I have seen a short term pressure rise like that after shutdown with a warm engine. If everything is sealed up, expansion from heat causes that. I would verify those results with another gauge but the unit illustrated is a quality brand. 32psi is awfully low if actual, especially if it doesn't snap right up with throttle input. Usually a bad regulator goes high rather than low. The behavior described is pretty much normal but it sounds very slow to respond, making my first guess a fuel filter. A system operating as it should have almost instant response. It's possible the pump is weak but I would start with the filter.

I agree. When you do the test with the brake to unlock the converter, do it when the you are accelerating up a long incline so the transmission is in 4th gear and the converter is locked and you feel it vibrating. If you lay your food on the brake pedal the converter should unlock. If that causes the vibration to go away you can be pretty certain the problem is with the engine missing. Most likely bad spark wires and/or spark plugs.

Update: the ICM and Coil pack did fix the issue, however it still has a light throttle misfire/hiccup but otherwise it has good power and responds to more load and throttle/rpm etc now and does so smoothly and cleanly. after we drove it back from a little wash it was hunting in idle (said CEL came on but we didn't get a chance to check the codes) but on the way out to the wash i pulled the codes and they were all history codes and were: E041, B448, B552, C553. i cleared the codes afterward so tomorrow when we get back to putting in a "test pipe" in place of the cat, and cleaning the interior ill try to check and see what code/s its throwing now.