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Re: GM Fuel Pump Diagnosis
Posted to Technical Discussion Forum on 12/27/2018 3 Replies

Louis, I scoped the MAF and have attached the pico data file. I show it at idle with a throttle snap. I know it is not a true throttle snap since this is drive by wire, but the pattern looked good. [2005 Cadillac STS, ECM/Inputs/Outputs Waveform] Login to read more.

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