|
1997 Grand Prix GTP fuel pump problem
1997 Grand Prix GTP...Quick history, had to repair/replace the coupler on the supercharger so all related work (fuel,vacuum lines, Injectors etc were removed/replaced, some broken vacuum lines were broke and repaired, went to start it up and I am getting the symptoms described here for the resistor failure, runs for a few seconds then fuel pressure drops and it dies, did all the described tests and it still dies so I am assuming its not the resistor.
Direct wired the fuel pump (at sending tank) and it runs perfectly, also jumper/bypassed relays (#30 to 87a on speed relay 15) and (#30 to #87 on fuel pump relay 14) runs fine. Test at tank shows voltage when key comes on then none after it starts (pcm sends signal to speed relay), also if I leave the pump relay in and bypass the speed relay (#30 to 87A) it will stay running. I also tried to bypass the resistor all together by unplugging it and jumping across the connector terminals and it still dies.
Pretty frustrating at this point....Any Ideas ??
|