TBIThrottle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.
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Does this thing have a fuel pump relay? I jumped the oil pressure switch when the switch failed to keep the car running, but my fuel pump won't shut off. I've looked in Chilton's and the Haynes books, neither have the wiring diagram for the 88 TBI set up. The TPI set ups show the relay to be in the l/r of the engine compartment but it is not there. Do I even have one? I'm assuming that if I do, it is stuck shut. Someone HELP!
your fuel pump relay should be located on the drivers side in the engine compartment on the firewall closet to the corner, it should be in with the ESC module, and Guide box Cluster on the right hand side of your Wiper motor the fuel pump relay should be in with that cluster
I just went back out and looked some more. The TPI set up appears to get power from a 20amp fuse all the time. So it makes sense that the pump never stops running. Where is the fuse though? I found one in the interior fuse panel that was labeled 'FP/Fan' but removing it did no good. Apparently there is a fuel pump relay (which I'm not exactly sure of its location) but by the looks of the diagrams for the TPI the relay has no control over the fuel pump. Maybe I'm just crazy, any ideas out there? I really am getting lost.
unfortunatly i cant find any info on the web, but if you havent already looked get under your car and look all round the Fuel tank for ECM type connectors or Pigtails, you answer may be there
The fuel pump relay and wiring are screwed found them today, in the daylight you can see so much more . The fuel pump is directly run by the oil pressure switch. The fuel pump relay is apparently only there to prime the pump when the key is turned on. Once the car is started the fuel pump relay is not used. Still haven't found the fuel pump fuse. The search continues.............
. The fuel pump is directly run by the oil pressure switch. The fuel pump relay is apparently only there to prime the pump when the key is turned on. Once the car is started the fuel pump relay is not used. Still haven't found the fuel pump fuse. The search continues.............
