Quote:
Originally Posted by george kujanski
I actually found the reset function, buried deep in the fuel system menu. Strange that the Innova tech guy said this model scanner didn't have it for the Tahoe.
In any case, after resetting it, the fuel alky comp went from 65% to 3% and the Long Term Fuel trim went from -28% to a more normal few percent.
I'lll check the cold start performance this morning. I wonder why the alky comp went that high in the first place, messing up the fuel trim.
BTW, disconnecting the battery did not reset it either.
George
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I see this from time to time. So far we have just reset the customers vehicle - Same thing you have done - And its been fine. We have yet to replace a fuel composition sensor.