Fuel Pump Control Module (Fuel Pump Driver)
A fuel pump control module varies the speed of the fuel pump to supply exactly the pressure the engine needs.
What is Fuel Pump Control Module (Fuel Pump Driver)?
It drives the pump with a pulse-width modulated signal. Running the pump slower when possible reduces noise, current draw and fuel heating. It is often mounted near the fuel tank or in the boot. Live data shows commanded and actual fuel pressure.
How it works
The engine control unit requests a pressure and the module adjusts pump speed while monitoring a pressure sensor.
Why it matters for your car
Modules near the tank can corrode and cause stalling or no-start faults. Check wiring, grounds and connectors before replacing the module.
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