Confirm fuel supply starvation by measuring the pressure between the electric fuel pump and the main canister filter. The system requires a constant pressure of 10–20 psi for proper operation; a reading below 7 psi indicates a failure of the fuel supply, such as a clogged rear in-line filter or a failing electric pump. Inspect the rear in-line filter and the main canister filter for debris or restricted flow to verify if the injection pump is being deprived of adequate fuel volume.
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