Question about 1999 Lexus ES 300

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1999 lexus es300

Engine light and trac light on. Changed knock sensor but lights came on after about 10 minutes of driving.

HELP.

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  • lifetooshort Jul 27, 2008

    I have a similar problem with my 1999 lexus es300. I changed the air flow sensor and changed the front sensor. Still the traction light stays on.. I dont want to spend any more money. The Computer read-out still says its the air flow sensor. I changed it twice already with the same read out. Please help!!

  • ravenwulf67 Nov 25, 2008

    I own a 1999 Lexus 300ES and I am having a problem with the check engine light. Problem codes were associated with VVT system malfunction, with has caused other problems to occurr. The car is now misfiring from #1 #3 and #5. Could you please give me some insight. I was told by a Lexus mechanic that operating the car while the VVT was malfunction would not cause any additional problem to the car, beyond it driving crappy

  • HOTRONTHEBOS Dec 08, 2008

    MISFIRING ON 1-3-5

  • Anonymous Jan 05, 2009

    I have same problem. My mechanic has told me it's the V V T/ oil control valve but auto parts stores do not carry replacement which means you will have to purchase the part from the dealership cha ching $$

  • webeyan Jan 06, 2009

    Same thing, check engine and trac off lights came on and can't figure what is causing it.

  • duggalv Jan 21, 2009

    I have the same problem. The check engine sign blinks and Trac off sign too. They both come and go. I got it checked from Firestone, they changed all my spark plugs and 3 coils. But of no use. I then took to Dealership they suggested it needs new ECM. What do you say.

  • Anonymous May 21, 2009

    Well i have the same problem with the engine light and vsc light on, took it to the mechanic to read the code and it says knock sensor bank 2

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This has been happening to my car as well. It typically happens when your oxygen sensors start to wear out. Mine does it once in a while and I have the local auto store reset it. Go to your nearest auto store and have them tell you what code it is and ask them to reset the OBD so the light goes out. If the light comes on right away and the code has to do with your oxygen sensors, have them replaced. There are three, two are easy to replace, one takes some effort as it is in a tough to get to spot. The dealer will charge you a fortune to replace them so do it yourself or through a local mechanic. It is a very simple task other then the access.

Posted on Jul 20, 2008

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Before replacement of your expensive oxygen sensors, clean your MAF sensor with isopropyl alcohol. you can fix it by yourself. it takes about 20 min. You will never see the CEL Trac off. 1999 ES300 Lexus.

Posted on Sep 11, 2010

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