318is fuel pump?

[ash00]

Hey gang,

Anybody using the 318is electric fuel pump in their stock 02 tank?

Does anybody know what each of the three lines are for the three pin connector? I assume the first two on the other two pin connector are power/ground.

Thanks

[Harv]

Power, Ground, Fuel level?

John

[BLUNT]

power,ground,low fuel light

[-=Charley]

power,ground,low fuel light

ditto. here's a length comparison

[canadapierre]

Charley, you saying that early 318i pumps are the same length as 91 318is ones? Are they both HP in-tanks?

[BLUNT]

early 318 is low pressure

[-=Charley]

early 318 is low pressure

ditto. you could use the 318i unit, but you'd need the pre-pump and reservoir to go w/it.

[Harv]

Looks to me that the early 318i deal is longer.

Does the fuel level sender bolt to the pickup assembly, or does that mount in another hole in the 318i tank?

John

[jimk]

power,ground,low fuel light

For everyone's info. Test run the pump with a hose from the reg out to a can to make sure the pump is robust and pumping past the reg at a rate greater than you car will use fuel. And to confirm you have the correct leads to the pump. Leads reversed and it will turn backwards and blow bubbles in the tank but no fuel to the engine!

Also never mentioned, but you can figure it out. Remove the level sensor stilling well to remove/install the pump from/into the tank. It won't come out with the sensor well in place.

[Mike87]

Just so you know, that low level sensor wire is a ground. You need to hook a switched power wire to a light and this wire completes the circuit to ground.

[ash00]

Thanks you guys...

does anybody know which function corresponds to which wire color?