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International Automotive Technicians Network
Re: Lean both banks
Posted to Technical Discussion Forum on 3/20/2017

[Fuel pump ground voltage drop, B+ and amps]

I believe this is from a GM truck

The blue CH A is the fuel pump blk wire ground voltage drop near the fuel pump cranking at 263mv

The red CH B is the voltage at the grey wire near the fuel pump. Cranking is ... Login to read more.

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