I currently have a crank/no start condition. Tracked it down to no fuel. Replaced the Supra pump after a couple quick tests. No fix. More testing.

There's no power to the pump when cranking. When I have the pump powered directly to the battery(or jumper the pump through the diagnostic port in the engine bay) and turn the key "on" it flows fine. The fuse is fine. The pump relay has the audible click, so I haven't checked if it's getting the proper power(not sure where to hook the volt meter to it).

I wish this was something mechanical that I could fix no problem. My electrical abilities are lacking. Any ideas where to go from here?

 

Find the fuel pump resistor below the brake booster and check out the wiring to that. Had a car that a rat ate the wiring to the resistor.

 

Resistor wiring looks good.

Also I failed to mention I have a PFC.

 

Update: Couldn't figure it out myself. Took it to Rotary Performance. Turned out to be a shorted chip in the pfc.

 

Sounds like a burnt out driver. I can't tell you how many fried power fcs. I've had to diagnose for customers. They seem to be very sensitive to voltage issues. Reversing the battery cables, or even using the high amperage engine start on the big battery chargers can fry one.