Question about 1996 Lexus LS 400

2 Answers

Ls400 problem the check engine light is flashing and the engine is running rough. changed spark plugs, changed cam pos sensor, change rotor buttons, changed coils. still nothing. please help.

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  • king802 Sep 16, 2008

    2002 Lexus IS 300 check engine light is flashing and running rough. Just started out of the blue. Had thermostat go out earlier and replaced. Car ran fine for a while but then this started this afternoon. Is it safe to drive to the mechanic?

  • Anonymous Oct 22, 2008

    check the temperature sensor. Had the same problem, replaced the sensor and everything's fine

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2 Answers

The temperature sensor might be bad. I had the same problem, changed the plugs, wires, rotors, etc and nothing helped. Changed the temperature sensor and it worked fine.

Posted on Oct 22, 2008

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Seems like a timing sensor maybe out. Get a computer diagnosis done on the car from a local garage and check that all electronics are functioning properly. That might identify the problem. Also maybe try some of the petrol additives which clear the petrol lines out. Simply add a bottle when u next fill up. Hope that helps.

Posted on Aug 19, 2008

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Hey Doug. I would change the cam sensor and see it that takes your light on. The misfire may errase with a new cam sensor. I would hold off on the crank, until I changed the cam sensor. If it still runs rough, then maybe try the crank sensor. It is possible they didn't gap the #8 plug right or it was a bad plug. I would try the cam Doug. I would hold off on the crank.

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