Check engine keeps coming on every 100 miles or so
280

Asked by gbenito Sep 28, 2015 at 06:38 PM about the 1998 Lexus ES 300 FWD

Question type: Maintenance & Repair

,  Check engine keeps coming on every 100 miles or so,. Sometimes i fill
up with premium gas and add fuel injector cleaner and the check engine
will go off for a tankful or 2 then come on again. Don't remember code but
1 thing the code defined was mass flow sensor, oxygen sensor and 1 bank
misfire (the 3 cylinders closer to firewall getting to much fuel) What could it
really be wrong?

1 Answer
280

gbenito answered 8 years ago

I bought car 2 years ago, and I have not changed plugs, or spark plug wires or coils . car has about 120 k miles. The car runs good . sometimes will not crank on initial start up , have to try 2 or 3 turns of the key. I have changed the fuel filter.

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