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Service Engine Soon


nardeezy

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My "SES" light illuminated last week. I bought the OBDII Scanner at Autozone and it read the code as P1416 "Manufacturer Emission Controls". I did a search on the forums and a few guys had the similar code in the past. 2 days ago I removed the error with the scanner. So far we have driven the Tahoe a few times since removing the error code and it has not popped up again. How does the OBDII detect errors and when does it usually trigger the "SES" light to illuminate?

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