Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
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how did you determine it is number 1 cylinder??
have you checked the fuel pressure. low fuel pressure will set the 300 code as well as the lean code 171.
how were the injectors cleaned??? additives have little or no effect.
ok, thanks. top engine cleaner does nothing to the injectors. is cleans the intake system, valves and the top of the pistons.
can you do a compression test on number 1??
did you check fuel pressure