Where is my fuel pump relay?

[blue66tang]

I am working on putting in a 89 5.0 into a jeep cj7, and foudn out tonight, after many hours of wondering and freaking out, that i dont even have a fuel pump relay. I have both engine harnesses out of the 89. I thought the fuel pump relay was up by the mass air meter, it turned out to be the WOT relay. So where the heck is the fuel pump relay and how do I hook it up. I am running a manuel trans with a Auto computer if that makes a different. I did fire it up tonight for the first time though, i ended up just hotwireing the pump for now. Everythign else whent pretty well till i gave up on the relay thing. Thanks

 

[HISSIN50]

The FP relay would have been in the harness that popped up under the driver's seat.

Here's a diagram of the FP pathway (upper left).

Good luck.

 

[RYC CUKR]

They only put the fuel pump relay by the MAF meter in the later years. I know 93 for certain cause that is where the relay is on my 93 but my 88 is under the passenger seat

 

[caseywan]

They only put the fuel pump relay by the MAF meter in the later years. I know 93 for certain cause that is where the relay is on my 93 but my 88 is under the passenger seat

I have a 92 GT and mine is by the MAF.

 

[blue66tang]

No wondure i was so freaking confused. Thanks guys. ill have to get that all wired up. Anybody have any sugestions on how to make my fuel pump quieter. I have the msd high pres efi conversion fuel pump. I have it mounted just in front of the rear axle, and just under the feet of the passengers. I couldnt believe how loud it was inside the jeep.

 

[HISSIN50]

To reiterate, it is under the driver's seat (in case there was confusion).

For the pump, I've had some loud ones (mech to electric pump conversions and such) and often simply using some rubber-isolotors (read grommets) under the pump-to-chassis fasteners helped a bit.

Otherwise, creating a node/anti-node chamber can be expensive and frustrating.

Good luck.

 

[RYC CUKR]

Oops

For some reason I had the passenger seat on the brain.

Sorry for the confusion.