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International Automotive Technicians Network
Re: Surging under load, fuel pressure drop
Posted to Technical Discussion Forum on 2/3/2014

Take a test drive while graphing; engine RPM, throttle position, long and short fuel trims from both banks, front and rear 02 sensors and post up your results. The scan data will lead you directly to your problem.

Oh, Please put the scan data is a graphical ... Login to read more.