Fuel pump relay control lsxfox
06-08-2012, 11:49 PM
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Fuel pump relay control lsxfox Have a modified truck harness from calspeed. The wire in question says "fuel pump relay control: puts out + to turn on relay"
Does this mean the relay for the fuel pump under the driver seat? What wire does it tap into or replace I'm confused and need help. My friends left me high and dry for Friday night runs, so can someone please walk me through this
Does this mean the relay for the fuel pump under the driver seat? What wire does it tap into or replace I'm confused and need help. My friends left me high and dry for Friday night runs, so can someone please walk me through this
06-09-2012, 07:03 AM
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yes that is the fuel pump relay trigger wire. im not sure offhand which wire is the trgger in the fox harness but you should be able to find that in a chilton/haynes book
06-09-2012, 02:56 PM
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I do not posses either of those books and broke so can't go buy one right now.
A buddy who has a ls1 turbo fox told me to wire it into the pink w/ blk stripe wire that is 1 of the 3 in the trunk area. Does this sound right?
A buddy who has a ls1 turbo fox told me to wire it into the pink w/ blk stripe wire that is 1 of the 3 in the trunk area. Does this sound right?
06-09-2012, 03:04 PM
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i THINK thats the actual hot wire to the pump, look on your relay under the seat and see if one is there that color. not to be a ***** but if you cant afford a $20 book to help you shouldnt be doing the project.
06-10-2012, 02:33 PM
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Well considering I just bought a house and I've been doing this project for over six months now. Every last thing has been bought and installed for this swap. Just can't get the last of the wiring done because I'm not that good at understanding wiring. I don't thing money is an issue here I just wanted a little help
06-10-2012, 03:36 PM
#6
relay help hello bakomack. on the relay, look for #87. #87 will turn on the relay. #30 will be fused power to the relay. the fuel pump trigger should turn on the relay to #86 or #85. can u say which is ground? the trigger should send a +12v to the relay.
06-10-2012, 06:41 PM
#7
http://content.chiltonsonline.com/co...s/88156w03.pdf
Orange/ light blue is 12v constant
Pink/black is pump power
red/black is 12v ignition from the inertia switch
tan/light green is ground from the ECM to complete the circuit powering the pump.
Here is what you are going to do to make it work.
Take the fuel pump power enable from the GM PCM to the rear of the car, cut and splice into the RED wire on the inertia switch
Take and cut the Tan/light green wire from the ECM and put it to ground.
Pump will power when the GM PCM tells it to.
Hope this helps.
EDIT: To maintain the safety factor of the factory inertia switch YOU MUST CUT THE RED WIRE and splice the Power from the Fuel Pump power from the GM PCM
Orange/ light blue is 12v constant
Pink/black is pump power
red/black is 12v ignition from the inertia switch
tan/light green is ground from the ECM to complete the circuit powering the pump.
Here is what you are going to do to make it work.
Take the fuel pump power enable from the GM PCM to the rear of the car, cut and splice into the RED wire on the inertia switch
Take and cut the Tan/light green wire from the ECM and put it to ground.
Pump will power when the GM PCM tells it to.
Hope this helps.
EDIT: To maintain the safety factor of the factory inertia switch YOU MUST CUT THE RED WIRE and splice the Power from the Fuel Pump power from the GM PCM
Last edited by Chrome_Rust; 06-10-2012 at 06:59 PM.
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06-12-2012, 09:45 PM
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I just read this post. I wasn't getting any power to the pump at all do what I did was run a ignition power wire back to the pink/blk wire in the rear of te car and that kicked on the pump so motor would start. Is there anything wrong doing it this way?
06-12-2012, 09:53 PM
#10
Well, yes and no. It isn't what I would have done. You need to keep The inertia switch, and the pump control left to the ecm. If there is an issue, the pump will keep pumping fuel in an accident. With allowing the ecm to maintain control, when the engine stops, so does the pump. And the inertia switch is just a good idea.
06-13-2012, 12:14 PM
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As of right now for some unknown reason the orange wire under the driver seat is the only wire with power all others and all 4 in the trunk have no power at all. I'm using a modified truck harness the stock engine bay harness is removed where do I go from here
06-13-2012, 01:34 PM
#14
Thats from a Fused link. It is supposed to have power at all times. Like I mentioned above
These are the colors of the wires at the fuel pump relay under the seat.
These are the colors of the wires at the fuel pump relay under the seat.
Orange/ light blue is 12v constant
Pink/black is pump power
red/black is 12v ignition from the inertia switch
tan/light green is ground from the ECM to complete the circuit powering the pump.
Here is what you are going to do to make it work.
Take the fuel pump power enable from the GM PCM to the rear of the car, cut and splice into the RED wire on the inertia switch
Take and cut the Tan/light green wire from the ECM and put it to ground.
Pump will power when the GM PCM tells it to.
Pink/black is pump power
red/black is 12v ignition from the inertia switch
tan/light green is ground from the ECM to complete the circuit powering the pump.
Here is what you are going to do to make it work.
Take the fuel pump power enable from the GM PCM to the rear of the car, cut and splice into the RED wire on the inertia switch
Take and cut the Tan/light green wire from the ECM and put it to ground.
Pump will power when the GM PCM tells it to.
Last edited by Chrome_Rust; 06-13-2012 at 01:43 PM.
06-21-2012, 10:29 PM
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Well my inertia switch wires have been cut and retired.
The red/blk wire has been cut and tied into the pink/blk wire and the solid red wire is left the same.
How can I wire my fuel pump relay control wire into the group of wires under the driver seat and make this run with the wires being jerry rigged like they are, I don't care if the inertia switch works or not
The red/blk wire has been cut and tied into the pink/blk wire and the solid red wire is left the same.
How can I wire my fuel pump relay control wire into the group of wires under the driver seat and make this run with the wires being jerry rigged like they are, I don't care if the inertia switch works or not
06-24-2012, 03:51 PM
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Then take the tan/light green wire under the seat and cut it from the relay plug and just ground it out? Is this right?
06-24-2012, 08:20 PM
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Help! I need clarification on this!
Or will this work on a regular relay?
30- 12v constant
85- ground
87- power to pump
86- fuel pump relay control
Would this be fine for my fuel pump?
Or will this work on a regular relay?
30- 12v constant
85- ground
87- power to pump
86- fuel pump relay control
Would this be fine for my fuel pump?