6. Detect Malfunctioning Part
WARNING: This page is about a different car, the 2004 Infiniti M45. However, it is still accessible from the selected car via links, so may be relevant.
Check the following:
- Fuel pump and circuit (Refer to DTC P1220: FUEL PUMP CONTROL MODULE (FPCM) and FUEL PUMP CIRCUIT .)
- Fuel pressure regulator (Refer to FUEL PRESSURE CHECK . )
- Fuel lines (Refer to CHECKING FUEL LINES ).
- Fuel filter for clogging
- : Repair or replace.