fuel pump direct battery power - Page 2 - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

*slider2828* · 10-28-2010, 01:41 AM

Ok I just finished this... some people just never bothered to put up the diagram so here we go... I also left my stock fuel pump fuse and fuel pump relay....

On my kit from DW... I made all my modifications on the chassis plug NOT the pump side of the plug coming from the fuel pump cover..

Red = Battery +
White = Battery -
Yellow = Red with Black Strip on the plug side
Black = Switched 12V Red with Black Strip on the Chassis lead we cut

Finally cut the black wire cause I liked chassis ground, so I cut the black wire and on the plug side I grounded it to a good chassis ground...

Rest of the wires (green and one other color I don't remember, don't touch)...

Also I have another fuse between the relay and the battery 12V...

Hope this helps....

*garagelu* · 10-28-2010, 04:12 PM

Quote:

Originally Posted by slider2828

Ok I just finished this... some people just never bothered to put up the diagram so here we go... I also left my stock fuel pump fuse and fuel pump relay....

On my kit from DW... I made all my modifications on the chassis plug NOT the pump side of the plug coming from the fuel pump cover..

Red = Battery +
White = Battery -
Yellow = Red with Black Strip on the plug side
Black = Switched 12V Red with Black Strip on the Chassis lead we cut

Finally cut the black wire cause I liked chassis ground, so I cut the black wire and on the plug side I grounded it to a good chassis ground...

Rest of the wires (green and one other color I don't remember, don't touch)...

Also I have another fuse between the relay and the battery 12V...

Hope this helps....

The way you wired it makes the pump stay on all the time when the key is turned in the on position. If it does this, that's not the correct way to do it since if you somehow crash and a fire starts, the pump is going to keep pumping fuel.

SuperiorS14 · 10-28-2010, 04:20 PM

yea your supose to pull the power supply from the ign. 12v and u should also use a relay.

*slider2828* · 10-28-2010, 05:06 PM

Quote:

Originally Posted by garagelu

The way you wired it makes the pump stay on all the time when the key is turned in the on position. If it does this, that's not the correct way to do it since if you somehow crash and a fire starts, the pump is going to keep pumping fuel.

anyone got a diagram on how to do this? I looked through the FSM, it does really give me any idea on this trunk plug.

A relay is basically like a switch correct? If the 12V is on, then the relay passes eletricity through I know that much. So on the switch 12V, it acts as a trigger? So 1 click it turns on the relay, and 1 click again and it turns off the relay?

*slider2828* · 10-28-2010, 07:14 PM

I also have 2 relays which I think will be fine... Key goes to the egi fuel pump relay that 12v goes to my relay.... So there are 2 relays... If the original shuts off like designed, this one will do so as well.... right?

10-28-2010, 01:41 AM	#31
slider2828 Premium Member Join Date: Oct 2004 Location: San Francisco, CA Posts: 5,824 Trader Rating: (13) Feedback Score: 13 reviews	Ok I just finished this... some people just never bothered to put up the diagram so here we go... I also left my stock fuel pump fuse and fuel pump relay.... On my kit from DW... I made all my modifications on the chassis plug NOT the pump side of the plug coming from the fuel pump cover.. Red = Battery + White = Battery - Yellow = Red with Black Strip on the plug side Black = Switched 12V Red with Black Strip on the Chassis lead we cut Finally cut the black wire cause I liked chassis ground, so I cut the black wire and on the plug side I grounded it to a good chassis ground... Rest of the wires (green and one other color I don't remember, don't touch)... Also I have another fuse between the relay and the battery 12V... Hope this helps.... __________________ Turn and Burn!

10-28-2010, 07:14 PM	#35
slider2828 Premium Member Join Date: Oct 2004 Location: San Francisco, CA Posts: 5,824 Trader Rating: (13) Feedback Score: 13 reviews	I also have 2 relays which I think will be fine... Key goes to the egi fuel pump relay that 12v goes to my relay.... So there are 2 relays... If the original shuts off like designed, this one will do so as well.... right? __________________ Turn and Burn!

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10-28-2010, 04:20 PM	#33
SuperiorS14 Zilvia FREAK! Join Date: Feb 2007 Location: S.G.V. Age: 36 Posts: 1,138 Trader Rating: (20) Feedback Score: 20 reviews	yea your supose to pull the power supply from the ign. 12v and u should also use a relay.