Having problems with your 1991 Lexus LS 400 ?
My lexus 1991 LS 400 is surging when in idle I had the mass air flow replaced and they checked the throttle body which doesn't seem to be the probelm. What else could it be? I had the engine wash
\015 Car is in great shape overall. Was running fine until I had the fluids replaced and the engine cleaned all the same day. My suspicion is that the cleaning of the engine with water may have affected something\015
Easy , water has entered the cavity of the spark plugs. suck the water and dry all around including the high tension wires. it happen during your washing.
That sounds very much like fuel contamination
Repair Help & Product Troubleshooting for 1991 Lexus LS 400
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