Fuel Pump and Fuel Level

[Bigzavs]

im puttin my car back together, and i put a walbro 255 pump in and i wired it up, just like it shows on the JBLMK3 site, but it will not turn on when i turn the key to prime the system, i checked the pump and it works perfectly, so i was wondering if anyone knows why it wont work, i was thinkin the fuel pump relay, but i dont know. and the other thing is the level unit wont work either, doesnt read anything and i have a full tank of gas. just wondering if anyone knows what the causes might be, any help is greatly appreciated

 

[John Lunsford]

Run a wire connecting Fp and +B (or just supply 12V to Fp) in the diagnostic connector. That way, when the switch is on, the fuel pump will run without the car being started. If you simply supply 12V voltage to Fp, the car won't need to be started. This supplies voltage directly to the fuel pump and you will see pressure on the system. If you don't have a gauge, you will hear the fuel circulating.