I have a 95 SC 400, pretty much stock. Ever since I purchased the car over 2 years ago, I have had an interesting, im not going to say problem cause i havent really had a problem, but indication, maybe??? Every once in a while the check engine light will flash on for maybe 3-5 seconds then shut right off. It is not a very common occurance, sometimes months will pass with out seeing it. Like I said, ive had no problems really, maybe a little idle temperment, but nothing that akward.

The car is obviously OBD1 so I dont know how much a computer check would help. Does anyone know if the check would pull up any codes if the engine light is off? Like I said, the light turns off after 3-5 seconds, so its practically impossible to test it when the light is on.

Any ideas?

 

http://www.troublecodes.net/Lexus/

check that... you should still be able to get the last couple codes in the computer if they were truly valid - could be a faulty connection though.... let me know what it says... i have the entire repair manual in pdf and can tell you how to fixe each code...