Resolved 2g AWD Fuel Pump Rewire, guide confusing?

b-morr · Aug 2, 2008

Yup another one of these. I have seen everything explaining how to do it on FWD, and read post that tried to explain it. On the harness there is the big black and black/blue wires, first is ground second is power. But what is the small black wire? The thing that is confusing me is I bought a rewire kit and it came with a guide on how to do the rewire. Its the same as the spyder rewire just an insert for the AWD which completely throws me off. It has a picture of the AWD harness, and it says to cut the black/blue power wire and attach the connectors for the relay. Then it points to the small black wire and says attach your ground here..???

Should I just ignore those instructions? I'm lost..

This is what I did. I connected the power from the battery to number 30 on the relay. Then I cut the old power wire (black/blue) in half and put clips on each end and connected them to the relay. Then I cut the big black wire, which I'm assuming was the ground. The wire coming from the clip I soldered to my new ground and another wire that I ran to the relay also. Does that sound right?

Well, I'm waiting on some more parts, so I got time to figure if its setup right, but I still need some to see if I did it right.

luv2rallye · Aug 4, 2008

b-morr said:
This is what I did. I connected the power from the battery to number 30 on the relay. Then I cut the old power wire (black/blue) in half and put clips on each end and connected them to the relay. Then I cut the big black wire, which I'm assuming was the ground. The wire coming from the clip I soldered to my new ground and another wire that I ran to the relay also. Does that sound right?

Nope, but you also never said which relay terminals you used either - it makes a difference.
Relay pins:
30 - new heavy gauge wire you added from battery positive (thru 20A a fuse)
87A - not used
87 - when cut black/blue wire this is one that goes to pump
86 - when cut black/blue wire this is one that comes from the front of car (actually is from stock FP relay).
85 - connect to chassis ground. [If large black wire is already cut, you can instead splice into it (on FP connector pin 1) which goes to ground. You shouldn't have cut the big black wire. It still must go to the FP thru pin 1 as it's the FP ground. But now that it's cut just connect the 2 halves back together with a wire that goes to pin 85 (or connect both halves right on pin 85].

Solder everything and wrap tape or heat shrink tubing around each connection.

Connector pin 3 has a yellow/black which is the fuel low light and connector pin 5 is also a yellow/black which is the fuel gauge. The small black on pin 6 is the ground for these two and must not be used for the FP ground as it is too small. Use larger pin 1 black for FP ground.

b-morr · Aug 4, 2008

luv2rallye said:
Nope, but you also never said which relay terminals you used either - it makes a difference.
Relay pins:
30 - new heavy gauge wire you added from battery positive (thru 20A a fuse)
87A - not used
87 - when cut black/blue wire this is one that goes to pump
86 - when cut black/blue wire this is one that comes from the front of car (actually is from stock FP relay).
85 - splice into larger black wire (on FP connector pin 1) which goes to ground. You shouldn't have cut the big black wire. It still must go to the FP thru pin 1 as it's the FP ground. But now that it's cut just connect the 2 halves back together with a wire that goes to pin 85 (or connect both halves right on pin 85).
Solder everything and wrap tape or heat shrink tubing around each connection.

Connector pin 3 has a yellow/black which is the fuel low light and connector pin 5 is also a yellow/black which is the fuel gauge. The small black on pin 6 is the ground for these two and must not be used for the FP ground as it is too small. Use larger pin 1 black for FP ground.

I have everything like that but the ground. I cut the ground in half and the half that goes to the connector I have attached to a new ground and a wire that goes to the pin 85. Then the half that goes back into the harness I just disregarded. Is that still wrong?

luv2rallye · Aug 4, 2008

Sounds ok. Are you having problems getting it to work?

b-morr · Aug 4, 2008

I haven't tried yet, I had to change my intake mani gasket, and put a bolt through my rear mount (found out it doesn't have one) then I will try to start it up. So hopefully tonight, I just wanted to make sure before I put the seats back in because I think I confused myself over this. Thanks for the help.

gieri002 · Jul 22, 2010

Back from the dead, I know... I just wanted to say thank you luv2rallye, I did this today and your instructions were perfect!

luv2rallye · Jul 24, 2010

Thanx. It's very rare that I ever hear back anything after the problem was resolved - especially from one years later who was not even in the thread. You must have used the search feature - I'm impressed :thumb:

b-morr · Jul 24, 2010

Oh yeah, three cars later... thanks luv2rallye! It worked perfectly!

=]

black_gst · Aug 2, 2010

well since this is solved this shouldent be considered thread jacking LOL

i just rewired mine (2g fwd) and on the write up i used for reference it used the orignial fuel pump ground and i was wondering if i should at another ground to eliminate the factory ground for the pump. i do have the 8 gauge ground comming off the relay but i was thinking to do the same for the feul pump.

let me know if im making sense

thanks!

justinh722 · Aug 16, 2026

luv2rallye said:
Nope, but you also never said which relay terminals you used either - it makes a difference.
Relay pins:
30 - new heavy gauge wire you added from battery positive (thru 20A a fuse)
87A - not used
87 - when cut black/blue wire this is one that goes to pump
86 - when cut black/blue wire this is one that comes from the front of car (actually is from stock FP relay).
85 - connect to chassis ground. [If large black wire is already cut, you can instead splice into it (on FP connector pin 1) which goes to ground. You shouldn't have cut the big black wire. It still must go to the FP thru pin 1 as it's the FP ground. But now that it's cut just connect the 2 halves back together with a wire that goes to pin 85 (or connect both halves right on pin 85].

Solder everything and wrap tape or heat shrink tubing around each connection.

Connector pin 3 has a yellow/black which is the fuel low light and connector pin 5 is also a yellow/black which is the fuel gauge. The small black on pin 6 is the ground for these two and must not be used for the FP ground as it is too small. Use larger pin 1 black for FP ground.

Even though I've wired relays plenty of times before, a random search led me here from my Macbook browser. It was just quick and to the point. Didn't require a diagram or anything. Quick snap with the phone to favorite your reply as a possible quick reference when my brain is too tired to think anymore. Notice ur still helping out around here. Real OG for sure. Appreciate you!

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Resolved 2g AWD Fuel Pump Rewire, guide confusing?

b-morr

luv2rallye

luv2rallye

b-morr

luv2rallye

b-morr

gieri002

luv2rallye

b-morr

black_gst

justinh722

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