![]() The problem seems to occur when it warms up. All coil packs and ICM (under coil packs) replaced. What COULD be wrong with this low mileage "cream puff"? It only has 68k miles on it. So at this point, I am really at my wits end and am not sure where to go with this one. On the way home from work, the car stalled and she could not get it started back up again, just like on Saturday. The owner mentioned that the car surged a couiple of times but otherwise seemed fine. Started the car and it started up beautifully and we took it for a test drive. We then swapped proms into the new computer and putt it back in place. The computer did say "Delco GM" on it though, didn't appear to be aftermarket. The cover on the back side that covered the prom was missing. None of the clips that held the computer in place were present, the computer was just laying there. When I opened the plastic panel to remove the old computer, I coudl tell that someone had been in there before. The owner then wanted to replace the computer since she read that others have had simliar problems. Even though the new sensor wasn't hooked up to the throttle body, at idle, it still should operate within specs to allow it to idle at least. I just unplugged the old one and plugged the harness into the new one and had her turn the car on. As a quickie test, we bought a new sensor. If I opened the throttle plate VERY slowly, I could get it to start to rev up but then it would die again. We coaxed it back home by leaving the car in idle and putting ti into drive and "coasting" back to their drive way. As soon as she was hitting the gas pedel, it would die. If it ran, it would hover between 38-45 depending on RPM. With the key turned to RUN (not Start), it jumps to about 38. Checked the fuel pressure with my pressure tester. We then replaced the schrader valve with a core tool and a new core, no more leakage. Also the car did start up at that point (several hours after it was dropped off by the tow company). ![]() While at the house, noticed that the schrader valve was leaking fuel while trying to start it. I checked for fuel pressure by opening the schrader valve and poking something into it and got a big ole spray of fuel coming out, seemed okay. I got there and checked for spark, spark seemed fine and strong (blue white). Apparently it started once so they shut it off and tried to start it again, no start. Pulled into a gas station and tried starting it. This past Sat, they were going to go on a 1/2 hour drive and they made it halfway when their car started surging/dying and they got off the freeway. They have had the car for 3 weeks now.Ī week ago, they took it for a long drive (2 hours each way) and had no real issues other than they noticed rotten egg smell (cat) once in a while. However they have been having some problems with it this past week. Runs decent enough and is in clean condition. They got a car from their grandpa, its a 1990 3.1L Chevy Lumina with only 68k miles on it.
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