"False" trouble codes may cause erroneous illumination of the Check Engine Light. Updating the PCM software can often correct this concern.
Average mileage: 120,132 (64,000–154,328)
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engine light comes on and goes off all the time.sure the loose gas cap cousin throwing me that my catalytic converter is bad. and o2 sensors both of them. then it goes off for a long time then comes on and goes back off. I've had it since December of 2013. it better pass emissions this year. I log on my own maintenance take very good care of it and document all of it. the motor runs great. quiet and clean room the synthetic blend every four thousand miles. take care of brakes tires Ect. but engine light trips me out don't know what to think. don't know if I really have a problem or not
check engine lite comes on
secondary fuel module replaced, light remains on