P1020 – Fuel Pump Secondary Circuit Range/Performance (Ford)

Description

P1020 Ford indicates a performance issue in the secondary fuel pump circuit. This can cause hesitation, low power, or stalling.

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Symptoms

Hesitation
Low power
Hard starting
Stalling

Causes

Weak secondary pump
Wiring resistance
Faulty FPDM

Diagnosis

Check wiring resistance
Measure fuel pressure
Inspect FPDM

Repair

Replace pump
Repair wiring
Replace FPDM