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Re: Testing Direct Injection High Pressure fuel pump - Runs Rich
Posted to Technical Discussion Forum on 9/5/2020 1 Reply

You mentioned an ethanol test result of 9%. That ruled out high ethanol fuel, but have you looked at scan data calculated ethanol percentage?

Some GDI HP pump regulator solenoid valves decrease rail pressure when energized; some increase rail pressure when en... Login to read more.

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