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Check Engine Light Came On Ls400 1999 Model


monty_mm

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Hi guys, i've been searching the forum for a while to see whether i could solve my problem.

My problem is that the check engine light came on for some time now. i dont know what the problem is and cannot tell since everything seems to be normal and the car runs perfect.

i didnt send it to any repair shop yet to read the codes, i was wondering if anybody could tell me what could be the possible cause(s) since there seems to be no problem with the car.

I read somewhere that it could be the fuel cap, i tightened it, removed by batteries to reset the light, and it came on again after a while.

everytime i disconnect my batteries, the light would go off for a while and after driving for a while (maybe 15-20 minutes), the light will come on again.

anybody any ideas??? would be greatly appreciated.

regards,

monty

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Could be anything...

Bad Oxygen sensors is a common thing that you possibly wouldn;t notice in the running of your vehicles.

I am from canada, so it doesn;t apply, but in the US, I m pretty sure that 'autozone' will check and tell you what your codes are, free of charge, so I would recommend that. Until you know your codes, you will not know what the problem is for sure.

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thanks aarman4, at least now i can have a look at least at the wiring to the oxygen sensors to see if everything is ok before taking it anywhere. thanks again. will come back to the forum once i get any codes!

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thanks aarman4, at least now i can have a look at least at the wiring to the oxygen sensors to see if everything is ok before taking it anywhere. thanks again. will come back to the forum once i get any codes!

Best of luck! The wiring is probably fine though, those sensors have a shorter lifespan than they should.

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