I HAVE A 2000 ES-300 LEXUS WITH 59K MILES. IT HAS BEEN A GREAT CAR! I AM THE FIRST OWNER. RECENTLY CHECK ENGINE LIGHT COMES AND GOES AND ALSO ENGINE KNOCKS WHEN ACCELERATING. I STOPPED BY AT AUTO ZONE THE OTHER DAY AND THEY TOLD ME THE CODE WAS RELATED TO FUEL BURNING RICH. COULD THIS BE BAD FUEL QUALITY (LOW OCTANE ETC...ETC...)
KATY, TEXAS
Hi there... this sounds like a possible O2 sensor. Did autozone give you the code number? that would help a great deal if you had the code number . we can look it up and find out what exactly it could be.
Hello fellow Texan!
AutoZone should have gotten more than 1 code for this problem. The problem could be any number of things from knock sensor to O2 sensors. More information is needed.
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or lack of air getting to the engine... check the air filter as well... did they tell you the code(s) by chance ?
Robert
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