P12A4 AUDI – Fuel Rail Pump Control Valve Stuck Closed

P12A4 AUDI Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P12A4 AUDI Possible Causes

Faulty Fuel Rail Pump Control Valve,Fuel Rail Pump Control Valve harness is open or shorted,Fuel Rail Pump Control Valve circuit poor electrical connection

P12A4 AUDI Description

The Engine Control Module (ECM) monitors the Fuel Rail Pump Control Valve. The ECM sets the OBDII code when the Fuel Rail Pump Control Valve is not to factory specifications.