cheesecake

Well I need to find out how to hardwire the fuel pump, like what should i tie into and what kind of fuse set-up. Right now my goal is to get fuel pressure to see how the motor runs, then i can do a better job later. Would tying into the taillights work? that would also be a good security thing, just an idea

Aaron Cake

iTrader: (1)

Just apply 12V to the blue wire at the pump plug. DO NOT drive like this. The ECU shuts the pump off in the event the engine stalls (in an accident, for example). Driving around with this safeguard bypassed represents a major safety problem...

Just remembered the test connector: Near the passenger shock tower, there will be a yellow 2 wire connector. Sometimes it wanders underneath the AFM. If you jump this connector, the pump will run anytime the ignition is set to RUN, regardless of whether the engine is running or not.

Syonyk

Yup. The test connector is very useful for fuel system testing (which is why it's there).

After *any* fuel system work, I pull out the fire extinguisher, turn the key on, jumper the fuel pump test jumper, and look/listen/smell. If you've drained the engine part of the fuel system, it will make some horrible noises for a few seconds as the air gets forced out, and then there will be a steady hissing. You obviously should not see or smell fuel anywhere.

I assume this is what you're trying to do. If you want security, use a hidden fuel pump cutoff switch. As Aaron pointed out, the fuel pump arrangement is a safety issue. If your fuel lines are ruptured in an accident, the engine will stop, and the fuel pump will stop. This is significantly less hazardous than an accident, the engine stopping, and the fuel pump rapidly draining the contents of your fuel tank onto the ground under your car (where the blazing hot rotary exhaust has just been).

-=Russ=-