mc teg Posted November 12, 2007 Share Posted November 12, 2007 My 91 LS400 is starting to die on me. Whenever I am driving, it drives just fine until I stop and then its starts surging and after 10 secs it dies on me. If I leave it in park, the engine light comes on and surges but does not die. I cannot figure out what it can be. I replaced the spark plugs & wires, fuel injectors, ecm, tps sensor, and crankshaft sensor. My suspicion is the o2 sensors. What do you think it could be? Edit: I just had it smogged two weeks ago, could this be a symptom from being smogged? Quote Link to comment Share on other sites More sharing options...
yidaitianjiaous Posted November 19, 2007 Share Posted November 19, 2007 My 91 LS400 is starting to die on me. Whenever I am driving, it drives just fine until I stop and then its starts surging and after 10 secs it dies on me. If I leave it in park, the engine light comes on and surges but does not die. I cannot figure out what it can be. I replaced the spark plugs & wires, fuel injectors, ecm, tps sensor, and crankshaft sensor. My suspicion is the o2 sensors. What do you think it could be?Edit: I just had it smogged two weeks ago, could this be a symptom from being smogged? I had this problems several time and last friday on my way home after work, it started to die again. Engine speed up and downm, i had to put one foot on brake when stop adn another foot on feul. when i parked in a parking lot and check it out, nothing wrong. On the second half of my way home, it ran ok and i even hit the fwy. no symptoms at all. i posted the problems here and i was tol dit was air intake or the similar problems, i didn;t fix it yet cuz it ok now again. Don't know when it happens again next time. I will post it if i fix it. btw, mine is 1992 ls 400 with 165k on it. Quote Link to comment Share on other sites More sharing options...
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