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International Automotive Technicians Network
Re: GM P0172 / P0175
Posted to Technical Discussion Forum on 8/9/2013

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[...] ON, engine OFF, command the fuel pump ON with a scan tool. Verify the fuel pressure is between 345-414 kPa (50-60 psi) and does not decrease more than 34 kPa (5 psi) in 1 minute.

[...] ON wit... Login to read more.