[seriesofletters]

Hey SF, I'm in dire staits here.

My car started without issue until today, and now it will crank but not turn over. It turns out that the fuel pump is not getting power. I jumped B+ and FP, with no results. When hooked up to a power source, the pump ran, though i did not try to start the engine. I took the opportunity to completely replace all fuses, replace the EFI Main relay and replace all the fusible links, except for the 100A for the alternator. Still no power to the pump. Does anyone have any tips to pinpoint the problem? Any other relays that can be checked, replaced, or bypassed?

(If it matters, the fuel system is not entirely stock. The pump is a Walbro 255, without the 12V mod, and the fuel regulator is an Aeromotive AFPR.)

Edit: I'll also add that the CEL does not come on during or after cranking. And, after a quick check, it does not appear that there is power at the B+ terminal.

 

[Kruso]

Does the CEL come on when the ignition is in the "ON" position?

 

[seriesofletters]

Does the CEL come on when the ignition is in the "ON" position?

No sir.

Some additional info, The EFI main relay gets power, the EFI and IGN fuses get power, and (though I only used a test light), there is power to the MREL and IGSW terminals of the ECU.

 

[telefender71]

Im running into the same problem. I got a 1j and a walbro, and i think its the ecu so its getting rebuilt right now. But check your fuel pump relay, resistor, and open circut relay for operation, id start there.
I cant get the link for cygnus to work but check there

 

[seriesofletters]

I don't seem to be getting any power at the FP relay or resistor. I will check the Open Circuit relay as well.

 

[D-Oaten]

The TSRM has complete schematics for the wiring system, Check it out and see if you can trace where you may have lost your power.
I've had the same issues with electrical and vacuum lines and everytime it's been the same reason, Fuggin mice chewing through the shit. Check all your wiring and test the FP relay.

 

[SupraTrey]

Take out the resistor. Trace it back on the TSRM from the relay. This most likely is a ignition issue.

 

[telefender71]

see if your getting power out of the ecu that was my problem i needed to rebuild it