2003 Grand Prix Fuel Pump Wiring Diagram. 2003 pontiac grand prix wiring diagram wiring diagram is a simplified okay pictorial representation of an electrical circuit. According to the manual when the ignition switch is turned on the pcm sends power to the fuel pump relay to turn it on and send power to the fuel pump.
For big pumps try 12 gauge for. Pontiac wiring diagrams wiring diagram 2008 ford mustang radio wiring diagram 2006 pontiac grand prix radio wiring diagram. If voltage replace relay if not the problem is then with the fuel pump relay control in the pcm.
But i have no fuel pressure.
All wiring diagrams for pontiac grand prix gtp 2005 1997 diagram 2000 radio gt power distribution 3 8 1999 ground gauges stop wallace racing tach signal a remote starter 2007 fuse box block bulldog security hi i have 1993 headlight 39 m 2002 cooling electrical lighting 2001 main engine am car stereo. Its components are shown by the pictorial to be easily identifiable. May 6th 2019. Pontiac vehicles diagrams schematics and service manuals download for free.