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So I am admitting that the stock wiring is smarter than me…
I installed the dual Racetronix pumps with the new bulkhead connector and the intermediate harness into my 2000 camaro.
The intermediate plug plugs into the sensor looking thing on the top of the sending unit then into the new bulkhead and has a plug that goes into the wires from the front and you are left with the plug below
I am assuming red is power, blacks are ground then a signal for one pump and then another for the second.
how has everyone wired this all up going to the terminator?
can I forget about all stock wiring since the ecm is all out and just run the Holley?
So I am admitting that the stock wiring is smarter than me…
I installed the dual Racetronix pumps with the new bulkhead connector and the intermediate harness into my 2000 camaro.
The intermediate plug plugs into the sensor looking thing on the top of the sending unit then into the new bulkhead and has a plug that goes into the wires from the front and you are left with the plug below
I am assuming red is power, blacks are ground then a signal for one pump and then another for the second.
how has everyone wired this all up going to the terminator?
can I forget about all stock wiring since the ecm is all out and just run the Holley?
thanks in advance..
Cody
The Holley green fuel pump wire goes to the fuel pump relay trigger. That being said my racetronix harness was wired all wrong and didn't work worth a **** and I ended up wiring it up myself. Good luck
Yeah I have that relay still in the engine fuse block but am not sure how to go from those wires to give the new pumps larger power cables.
This has been one of my biggest struggles and I more or less fabricated my own procharger bracket lol
Red wire is your primary pump and blue is secondary. Have a wire trigger a relay to the red wire then use an output from the Terminator X and trigger your second pump on a ground trigger
Red wire is your primary pump and blue is secondary. Have a wire trigger a relay to the red wire then use an output from the Terminator X and trigger your second pump on a ground trigger
That is the most helpful information I have received yet!
So heres my dumb question..
Should I leave the stock plugs plugged in or remove them and cut apart the harness and wire as follows:
Terminator fuel line to stock pump relay
relay activation wire to second relay which activates pump 1
Terminator output to activate pump 2
Also what is the gray wire then? and dont I need to run power to the pumps?
That is the most helpful information I have received yet!
So heres my dumb question..
Should I leave the stock plugs plugged in or remove them and cut apart the harness and wire as follows:
Terminator fuel line to stock pump relay
relay activation wire to second relay which activates pump 1
Terminator output to activate pump 2
Also what is the gray wire then? and dont I need to run power to the pumps?
Thank you!
I cut all the stock crap out of my system and had the Holley green wire (+12v) trigger a new relay for pump 1. I then made a ground output from my Holley ECU to another relay for pump 2 which comes on at 50% TPS or 7 psi whichever comes first.
The grey wire is the factory power wire for the pump that will power up for like 5 seconds for fuel pump prime it needs to see that RPM signal to keep the motor running
I cut all the stock crap out of my system and had the Holley green wire (+12v) trigger a new relay for pump 1. I then made a ground output from my Holley ECU to another relay for pump 2 which comes on at 50% TPS or 7 psi whichever comes first.
The grey wire is the factory power wire for the pump that will power up for like 5 seconds for fuel pump prime it needs to see that RPM signal to keep the motor running
The grey wire will go to the trigger side pin 86, pin 85 is ground, pin 30 is fused power and pin 87 goes to the fuel pump. Since you've got Holley EFI don't bother using the factory wiring and send your green fuel pump wire to pin 86 on a relay going to pump 1.
I have a Dominator ECU and after I repurposed all of my racetronix wiring to wire up my own relays for the pumps I realized I didn't need any of their stuff. The Dominator will do it all for me
The grey wire will go to the trigger side pin 86, pin 85 is ground, pin 30 is fused power and pin 87 goes to the fuel pump. Since you've got Holley EFI don't bother using the factory wiring and send your green fuel pump wire to pin 86 on a relay going to pump 1.
I have a Dominator ECU and after I repurposed all of my racetronix wiring to wire up my own relays for the pumps I realized I didn't need any of their stuff. The Dominator will do it all for me
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Racetronix to Terminator X 
