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Home >> Infiniti >> 2004 >> Q45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> DTC P1220: Fuel Pump Control Module (FPCM) >> Description >> System Description

System Description

Fig 1: System Description (1 Of 2)
G00761074Courtesy of NISSAN MOTOR CO., U.S.A.

This system controls the fuel pump operation. The amount of fuel flow delivered from the fuel pump is altered between two flow rates by the FPCM operation. The FPCM determines the voltage supplied to the fuel pump (and therefore fuel flow) according to the following conditions.

Fig 2: System Description (2 Of 2)
G00761075Courtesy of NISSAN MOTOR CO., U.S.A.