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Ls400 1992


stormy
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Hi,

It could be the fuel filter or many other things,is the engine check light on?

Also check all the vacuum pipes for leaks as these can cause a weak mixture.

Is the air filter clogged?

Yes. the check engine light went on yesterday

What does that mean?

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The light coming on confirms you have a problem but at least now you can ask the car what the problem is by entering the diagnostic mode and reading the fault code(s).

Here is the link to the proceedure and what the codes mean.

http://www.lexls.com/tutorials/intro/codereading.html

Let us know how you get on. :)

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The light coming on confirms you have a problem but at least now you can ask the car what the problem is by entering the diagnostic mode and reading the fault code(s).

Here is the link to the proceedure and what the codes mean.

http://www.lexls.com/tutorials/intro/codereading.html

Let us know how you get on. :)

Hey,

Great news. I checked the easy stuff before the tuff and found a corrioded fuel pump sensor. I also replaced the timing belt and the car is running great with no check engine light. The gas is responsive and the car doesnt sqeek anymore.

Loving my 1992 and she just hit 214K yesterday

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