Close
Car Questions
RepairPal is your advocate for car care advice and guidance

Check engine light

(1999 Lexus GS300)
in Dover, DE on November 10, 2010
I have a 99 Lex gs300 and the check engine light is on. Just came on one day while driving. Nothing else major is happening with the car, but didn't pass emissions testing at DMV..what could this be?
Displaying 2 answers & 0 comments
Popular Answer
on November 10, 2010
there are over 1500 possible codes. you need a shop to do a real diag, not a free code pull to determine the issue and give you a bid.

Roy
of Ambler Tire Co., Inc. on November 11, 2010
If your gas cap is tight and you dont have a hose off the evap purge valve from a quick lube checking your air filter then it is most likely a bad air fuel ratio sensor,These are common on these cars.But you do need to have the code pulled with a scan tool.
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide. Learn more
Didn't find what you were looking for?