Question about 1999 Lexus ES 300
Engine light and trac light on. Changed knock sensor but lights came on after about 10 minutes of driving.
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
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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