westtexasbuff

iTrader: (40)

Ok, so I bought two relays to wire my Magnafuel 4303 pump. I have a fuel cell with a summit fuel sending unit. So I took off all the un-needed wiring off the stock harness, and left just what I needed to wire it up.

Just need to know if I have everything wired up correctly before I try and prime the pump.

Here's the layout...





Alright, so I took the trigger wire from the stock harness (grey) and connected it to 86 on the relay and jumped it over to pin 86 on the other relay as well.

Both 85 pins on the relay are jumped and grounded to the mount.

Both 30 pin's on the relay's are jumped and go to the battery disconnect.

Both 87 pin's on both relays are jumped and go to + on the pump.

Grounded the pump.

Did I do this right?

Old Geezer

iTrader: (3)

A dum ??
Why 2 relays?

turbo-civic-si

iTrader: (4)

Looks good to me. Make sure you got a large ground to the frame for the pump. Great job

LS1MCSS

iTrader: (18)

I was wondering the same thing. You don't need two relays unless you're running two large pumps.

westtexasbuff

iTrader: (40)

It's what Magnafuel recommends with their 4303 pump...

http://www.summitracing.com/parts/MRF-MP-1050/

Old Geezer

iTrader: (3)

" They are available in single and dual relays to suit your application needs."

I think that the comment on the ad is intended to mean, if you need 2 pumps, then this setup is what is used.

turbo-civic-si

iTrader: (4)

the only thing i didn't see in there is a fuse. I'm not one for safety but even I would fuel a fuel pump.