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Yeah, as far as the Air Intake Temperature sensor, I took it out and since it was pretty oil fouled from the PCV recirculating nasty air, I cleaned it good with carb and brake cleaner. I checked it with the ohm meter before I cleaned it and afterward as well. It was right on spec so felt no need...

I did put off my trip for a day or two just because I am still trying to get to the root cause of this issue. It definitely begins missing at the point the engine gets warm and the PCM shifts from Open Loop to Closed Loop fuel injection. It does the same exact thing every time. Runs ok for a few...

Well, I did have time to change out the coolant sensor. The old one that I took out did check correctly in the ohm range at room temperature (12.8K) although I did not bother to put it in hot water to see if the resistance changed as it should. I just put a new one in. I also replaced the rubber...

Trying to keep this thread up to date. I did remove the thermostat housing and was correct in that there was no thermostat. Cleaned everything really good and put in a new 195 degree thermostat. The heater does work after I coaxed the fan motor back to life. While I really thought that was the...

Still chasing this gremlin. My stock four banger starts easy, runs smooth when cold, good throttle response and pulls well. Until you get about 7 or 8 miles down the road. At first just a few sputters and misses, couple of pops and backfire. If I turn around when it starts doing this I am...

Just signed up to this forum so a complete newbie on here. I just bought a 1993 Jeep YJ. Pretty stock looking powertrain. Previous owner had it for 4 years. I know not a bit of history on the vehicle. Odometer shows 196K miles. My brother drove it for a few minutes just around the guys...