996 Turbo / GT2 Turbo discussion on previous model 2000-2005 Porsche 911 Twin Turbo and 911 GT2.

Urgent: Fuel Pump Install Info

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Old Sep 27, 2008 | 07:56 PM
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Urgent: Fuel Pump Install Info

I have the fuel pump mounted, ran, etc. I know where I get my 12v Power and my ground, but I need to know where my Key-Ground or whatever it is that I am suppose to get off a yellow/white wire on the relay boxes.

Basically I need to know what wire to grab a signal from so I can have it start my relay so it will make the pump run only when the fuel pumps are suppose to be running.

Please help soon because I want to drive the car around tonight to get some break in miles on her.

-Chris
 
Old Sep 27, 2008 | 08:36 PM
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I believe you have to tap into an ECU line to do it properly. Something about a safety issue and the ECU has to be involved to shut fuel in an emergency, but I forget the details as to why exactly. I'm quite certain that it's very important to have the fuel pump wiring done properly....The connection is made under the Bose subwoofer near the ECU.
 
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Last edited by John@SpeedTech; Sep 27, 2008 at 08:46 PM.
Old Sep 28, 2008 | 09:57 AM
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Originally Posted by Powell
I have the fuel pump mounted, ran, etc. I know where I get my 12v Power and my ground, but I need to know where my Key-Ground or whatever it is that I am suppose to get off a yellow/white wire on the relay boxes.

Basically I need to know what wire to grab a signal from so I can have it start my relay so it will make the pump run only when the fuel pumps are suppose to be running.

Please help soon because I want to drive the car around tonight to get some break in miles on her.

-Chris
Fuel pump trigger comes right off the ECU, its on connector 4 its yellow/white but its not a positive trigger it rest at 12v and triggers with a ground, just grab 4 wires for your relay constant 12v, ground, + from the pump and trigger,

if you need any help let me know

Chris Green
 
Old Sep 28, 2008 | 03:47 PM
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Can someone post their wireing diagram for the relay. We found a white/yellow wire thats got 12v power constant, but it turns the fan and the pump on at the same time even if the car is in the off position.

Someone please help. It's my last thing to do finish and I'll have a running car again LOL!
 
Old Sep 28, 2008 | 04:23 PM
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Originally Posted by Powell
Can someone post their wireing diagram for the relay. We found a white/yellow wire thats got 12v power constant, but it turns the fan and the pump on at the same time even if the car is in the off position.

Someone please help. It's my last thing to do finish and I'll have a running car again LOL!
Ill catch you on aim in a minute. The white/yello is a constant 12v only when the engine is off. It grounds when the ignition is keyed on and the engine is started.
 
Old Sep 28, 2008 | 05:17 PM
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just sent you a PM with all the details let me know if you need anymore help.

Chris Green
 
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