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nightrider89

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  • First Name
    Brian

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  • Lexus Model
    LS 400
  • Lexus Year
    1992
  • Location
    California (CA)

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  1. I hope its not the ecu. and will check the ignitor and coil. seems to be easy enough. dont think the distributor cap has been changed yet. Is there a way to test whether its bad or not? and he doesnt drive that hard...ever... which is good for the car. I have never had a head gasket blow on any vehicle but it sounds like if it was blown, it would always smoke on start up? this doesnt happen until running the vehicle for some time. It happened when we were just doing some light revving. (the mechanic suggested some FI cleaner to see if it solves the problem). after about 5 min it started to smoke. Could it be the the spark plug wires. My thoughts are: if there is a misfire or running poorly, but checked the spark plugs and they are still good (did them not too long ago)... it could be the wires not able to send the electric current to allow for a spark which leads to no combustion and would also send that remainder gas down through to the exhaust? Also to check spark plug wires: do I just pull them off at each end and test for resistance? EDIT: got some more information from my dad. he said he was at a stop. the RPM dropped and he started to smell something like rotten eggs and gas. going to test the ignitor this weekend. ALSO I read online that a member had a similar problem and it could be related to a cracked EGR pipe? And that could be the source of the gas smell! But I do not have a CEL....?
  2. Hey guys and gals. New member and first post! =) I have a problem with a 92 LS400 @ 150k mi. I cannot really point a figure to whats wrong. So my dad was driving the car one morning, and all of a sudden, there is a loss of power and the engine sounds choppy. The exhaust smells of gas and there is a loss of power. This thing is seriously a lot slower than it was when I took the car out yesterday. I am guessing it might be a misfire and running rich. The car was driven in this condition slowly. There is some white smoke --I suspect this is from the coolant. I bring it to a mechanic and he says that he thinks in my fuel injectors not delivering the fuel into the cylinder. He checks my spark plugs and they are still good. I suspect spark plug wires. And from what I gather online, most threads point the finger at the ignition coil. lol... I wanted to come here for a second...er... third opinion and see what the general consensus of what the forum members here think Have these symptoms ever happen to anyone on here? Any help is appreciated.
  3. Welcome to the Lexus forums nightrider89 :)

    If you would like help using our forums then please check out our forum user video guides: http://us.lexusownersclub.com/forums/forum-90/announcement-29-how-to-use-our-forum-video-guides/

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