Your car, services, and appointments in one place.
Check engine light
What is your question?
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?
RepairPal Certified shops can diagnose and repair your 1999 Lexus GS300. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
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.