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Re: fuel pump disable(when greater then 50%commanded)
Posted to Technical Discussion Forum on 10/13/2014 1 Reply

Is it setting any DTCs? It looks like the FPDM is shutting down the fuel pump due to a fault. The fuel pump will run at twice the duty cycle that's displayed in the PID. Take a look at this:

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Go to pg 109. Maybe that will answer some questions... Login to read more.

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