Firewall passenger side of an 8.

A mount plate holds a fuel pump relay, a resistor box with 4 wires for injectors, amd a third silver box with only 2 wires.

What is the 2 wire box for? #4 in illustration

 

fuel pump resistor is the two wire one

 

Thank you for confirming.

Next big question though, can I jumper the wires and eliminate it since I'm running a Walbro?

I know in my Jeep days the Cherokees had these and we just bypassed them, they were only for pump noise reduction.

 

Yeah its for low pressure operation under light load. People bypass it all the time, though I can't comment on the merits as I leave my cars with the stock configuration (even with walbro).
Search fuel pump rewire and you'll probably find some stuff on how to do it. You can ditch the resistor and the relay if you bypass it.

 

the resistor is for the injectors. If you change the injectors you may need to bypass it depending on the type of injectors.
do not bypass it for a pump. It has nothing to do with the fuel pump.

 

if you bypass the resistor you are effectively removing the low voltage stage of the fuel pump operation. This could lead to fuel pressure regulator over run and shortened fuel pump life.

 

No, the injector box sits next to it and runs 4 wires into it. We've established that this is a resistor for the 9v operation of the fuel pump.

Yeah, you're right and this will be staying in the car until an aftermarket fpr goes into place and my double pumper goes in along with a direct wire.

 

Thanks for this info you guys. I've been looking for a decent pic or diagram of the part that drops voltage to the fuel pump for low load operation, and this is it.