Big Time Poster
check engine light
This recently came up. I didn't change anything or do anything and it just popped up. I already replaced my o2 sensor. What else could it be? Thanks!
Edwin
Super Moderator
First check the battery voltage
Check your voltage at both battery and alternator, these cars are very sensitive to any deviation from the norm in the way of voltage. I would expect to see a static battery voltage of about 12 VDC or more and a running alternator voltage of 13.5 VDC or better.
If the battery and charging voltage is too low, the CPU likes to go.
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