what is the most comman problem for a check engine light to come on in a toyota avalon 2011?
my toyota avalon 2011 is in good condition but recently the check engine light came
on......can you make any light of this?
Why guess? Scan the car for the code and you'll have a better idea on what the issue is. Any local auto parts store will do a quick scan for free, post the 4 digit code back here.
1st ones i have seen would be #1 o2 sensor if right maintenance schedule followed
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