1991 Lexus ES 250 "inglis range manual" Questions

...manual list and "CLEAR" ing all codes does not kill "Check Engine" light. Car runs fine. Previous owner says "Check Engine" wont go off because he had to change ignition ...

...range, or the engine noise does not go away, you may have a bad oil pump. The other possibilities include a bad oil pressure sending unit, or a problem with the oil pressure warning light circuit or ...

...range, or non-responsive to self tests. This will tell you what SYSTEM or CIRCUIT have failed, NOT necessarily the specific component. Get into the diagnostic mindset: What does it take to make the ...