After the work that was done on my car with the UIM replacement and whatnot, my check engine light has been on. I got the codes read today and this is what they found.
P0507- "The PCM has determined that the engine RPM is higher than expected for the current engine operating conditions".
The guy said that the car idles a bit higher than normal. I see it idling at 1000-1100 RPM most the time.
P0300 - "Multi cylinder random misfire"
The guy said the occasional misfire could be due to the higher idle.
What do you think? Any other things that may be causing this?
Sold: 1998 Pontiac Bonneville SE 178K Miles
Currently: 1998 Ford Explorer XLT 143K Miles