Wiring new Holley EFI to existing '89 Dual fans
Thread Starter
Joined: Feb 2001
Posts: 8,494
Likes: 411
From: Sophia, NC
Car: 2016 Camaro SS + 1986 Z28
Wiring new Holley EFI to existing '89 Dual fans
So I had asked in another thread about going with a stand alone fan control kit, or using the (new) Holley ECM. "IF"...I go with computer control, how would I wire it? On the Holley side, I have multiple programmable outputs. Simple enough. ...on the car side however.....looking at the '89 diagram, it looks like it's the gray to the AUX fan relay, and Dark Green/white to the main fan relay. Is it as simple as that? Two wires from the ECM to two wires for the fan relays?
Joined: May 2008
Posts: 867
Likes: 1
From: pawtucket RI
Car: 1986 iroc
Engine: alum. head 350 supercharged
Transmission: 6speed
Axle/Gears: ford 9in 3.90 35 spline moser axles
Re: Wiring new Holley EFI to existing '89 Dual fans
you would use the ground wires that each fan uses to turn on from the switch or ecm and use the ground outputs from the holley efi to control them
Thread
Thread Starter
Forum
Replies
Last Post
instaldave
Engine/Drivetrain/Suspension Parts for Sale
5
Apr 7, 2016 06:14 AM