77 280z ls1 wiring
Thread Starter
Teching In
Joined: Jun 2011
Posts: 17
Likes: 0
From: houston
77 280z ls1 wiring hi guys, i need some help with wiring the ecu. I have searched everywhere, but everything was related to stock harnesses. I am using a 98 corvette motor and a 2000 t-56 from a camaro. an aftermarket harness and ecu made and tuned by psi conversions. the harness has 8 wires and i dont know where to connect them, not sure if i am suppose to connect or t splice the wires into datsun dash harness or what. I am using the ls1 kit from Johns cars. i am using mechanical speed sensor to keep my original speedometer and gauges.
just need to connect these last wires and the car will be pretty much ready for start up. all help is appreciated.
wires are:
(brown)- ignition feed(from relay center)
(black)-speedometer(optional)
(green)-fan 1(optional)
(brown)-MIL ground
(purple)-brake signal/tcc ground
(orange)-park neutral
(white)-tachometer(optional)
(blue)-fan 2(optional)
just need to connect these last wires and the car will be pretty much ready for start up. all help is appreciated.
wires are:
(brown)- ignition feed(from relay center)
(black)-speedometer(optional)
(green)-fan 1(optional)
(brown)-MIL ground
(purple)-brake signal/tcc ground
(orange)-park neutral
(white)-tachometer(optional)
(blue)-fan 2(optional)
Staging Lane
Joined: Dec 2010
Posts: 60
Likes: 0
hi guys, i need some help with wiring the ecu. I have searched everywhere, but everything was related to stock harnesses. I am using a 98 corvette motor and a 2000 t-56 from a camaro. an aftermarket harness and ecu made and tuned by psi conversions. the harness has 8 wires and i dont know where to connect them, not sure if i am suppose to connect or t splice the wires into datsun dash harness or what. I am using the ls1 kit from Johns cars. i am using mechanical speed sensor to keep my original speedometer and gauges.
just need to connect these last wires and the car will be pretty much ready for start up. all help is appreciated.
wires are:
(brown)- ignition feed(from relay center)
(black)-speedometer(optional)
(green)-fan 1(optional)
(brown)-MIL ground
(purple)-brake signal/tcc ground
(orange)-park neutral
(white)-tachometer(optional)
(blue)-fan 2(optional)
just need to connect these last wires and the car will be pretty much ready for start up. all help is appreciated.
wires are:
(brown)- ignition feed(from relay center)
(black)-speedometer(optional)
(green)-fan 1(optional)
(brown)-MIL ground
(purple)-brake signal/tcc ground
(orange)-park neutral
(white)-tachometer(optional)
(blue)-fan 2(optional)
More info might be needed but I'll try to help a fellow z-car guy out here.
(brown)- ignition feed(from relay center) - ignition hot
(black)-speedometer(optional) - may or may not be used, many speedos use the vss signal not the speedo output. If you use the stock speedo, a mechanical converter will be needed.
(green)-fan 1(optional) - connect to relay to activate fan, should activate relay ground.
(brown)-MIL ground - ground for your check engine light.
(purple)-brake signal/tcc ground - most likely unused in your case (T56)
(orange)-park neutral - most likely unused in your case (T56)
(white)-tachometer(optional) - tach output signal
(blue)-fan 2(optional) - connect to relay to activate fan 2 (if used).
If your harness did not come with one, consider getting an additional fuse box (like the painless) to power the constant and ignition hots. Makes life easier. Good luck
240Dan, thanks for the tech support. Want a job??
__________________
Your Source for LSX Conversion Parts!
www.psiconversion.com
Ebay Store
Facebook/psiconversion
Instagram/psiconversion
'Dont Let EFI Pass You By!'
Your Source for LSX Conversion Parts!
www.psiconversion.com
Ebay Store
Facebook/psiconversion
Instagram/psiconversion
'Dont Let EFI Pass You By!'
Thread Starter
Teching In
Joined: Jun 2011
Posts: 17
Likes: 0
From: houston
Thanks for the help. all wires are hooked up. I tried to start it up but their was no crank just silence but the fuel pump worked fine. Not sure if I did something wrong. I'm pretty sure everything is right but not sure about ignition feed wire, don't know what u mean by hot wire. You mean like constant, like recieving 12 volts even in off position?
Thread Starter
Teching In
Joined: Jun 2011
Posts: 17
Likes: 0
From: houston
nvm, figured out the problem. my car use to be an auto so the 2 black/yellowstripe wires that were connected to the relay next to the fusible links had to be cut and connected together. same color wire that connects to the prong on the starter. now it cranks but gas isnt coming out of the injectors, so its all starightforward from here.
Trending Topics
Thread Starter
Teching In
Joined: Jun 2011
Posts: 17
Likes: 0
From: houston
damn it. new problem. i made progress and it runs....but... only in the "start" position. if i let off of the key the engine dies. can that be related to not having constant spark, or the fuel pump not staying running on the "on" position? all help is appreciated.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
check either at the relay or pump its self to see if the Fuel pump isnt getting power in the on position, also beware of alldata's wiring diagrams, i know when compared to the GM one I was missing a power wire on my pin out chart.
Thread Starter
Teching In
Joined: Jun 2011
Posts: 17
Likes: 0
From: houston
oh i havent used any gm diagrams. just the datsun one. yea ill check out those few things in the morning. its 11:44pm right now. put a voltmeter at the pumps + terminal and ground to chassis to see if i am receiving power on the "on" position correct? well i would hear the pump whinning if that helps. hmmmmmmmmmm
Thread Starter
Teching In
Joined: Jun 2011
Posts: 17
Likes: 0
From: houston
i figured out the problem, just had to solder ignition feed wire to an IGN 12v source, for example one of the 2 fuse wires in the back of the datsun fusebox center.
