Quote:
Originally Posted by ssqpolo
good job on fixing it. i always thought SES and CEL were the same. I have test pipes and my Service Engine Soon light came on. I'm almost positive theres no check engine one.
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Cat deficiency codes are typically shown as an SES light..
SES codes are typically the 'something is wrong' type of code versus the major fault codes that could prove something major.
In the case of cats (or lack of them) it's more of a emissions deal