HELP! Our newly purchased Duramax Hummer
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His problem has to be over-fueling... Even if it is a result of improper boost.
Black smoke and high EGT's are from excessive fuel. My guess is gonna be that since it happened just once, your wastegate stuck open or something like that. Perhaps a computer glitch. It can't be a fuel filter issue, that would give you white smoke.
If it hasn't happened since, I wouldn't worry about it.
Black smoke and high EGT's are from excessive fuel. My guess is gonna be that since it happened just once, your wastegate stuck open or something like that. Perhaps a computer glitch. It can't be a fuel filter issue, that would give you white smoke.
If it hasn't happened since, I wouldn't worry about it.