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Re: M.A.F. sensor testing
i still have the misfire and the 0172 error code(bank 1 too rich) which before i had the 0175 also,so the plugs helped some
the guy at the auto parts said i most likely had a clogged injector,but my dads neighbor(dealership mechanic)said to replace the pressure regulator,he had the same problem on his tahoe.so it looks like i will be doing a pressure regulator when i'm off next week. sure hope this is it because this is turning into a real big headache.
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