Best area to wire this in..
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Joined: Oct 2011
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From: Kansas
Car: 1991 Pontiac Firebird
Engine: 5.0 TBI
Transmission: 700-R4
Axle/Gears: 2.73 ugh..
Best area to wire this in..
Hey all,
I got the VATS module here that mimics the pulse to kick everything on. Only problem is, all the threads I've managed to find say a certain number of wire (colored blue) to put it on. I am gathering it needs to go in between my ECC and the module that is buried in the dash.
The thing is.. in the harness going into my ECC there are about 5 blue wires and nothing is labeled, not even on the inside of the ECC. Am I SOL here or do I just need to locate the buried VATS box and then trace it back to the ECC? An idea that I don't have to do that would be optimal as I've read that is a real PITA.
I got the VATS module here that mimics the pulse to kick everything on. Only problem is, all the threads I've managed to find say a certain number of wire (colored blue) to put it on. I am gathering it needs to go in between my ECC and the module that is buried in the dash.
The thing is.. in the harness going into my ECC there are about 5 blue wires and nothing is labeled, not even on the inside of the ECC. Am I SOL here or do I just need to locate the buried VATS box and then trace it back to the ECC? An idea that I don't have to do that would be optimal as I've read that is a real PITA.
Joined: Dec 2004
Posts: 16,906
Likes: 1,014
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Best area to wire this in..
should be pin b6 on the 1228746 tbi ecm
Last edited by Tuned Performance; Oct 28, 2011 at 08:11 PM.
Thread Starter
Junior Member

Joined: Oct 2011
Posts: 10
Likes: 0
From: Kansas
Car: 1991 Pontiac Firebird
Engine: 5.0 TBI
Transmission: 700-R4
Axle/Gears: 2.73 ugh..
Re: Best area to wire this in..
Are the individual pins labeled up inside where the connector plugs in? I didn't look there. I don't have it with me here or I could look. haha
Joined: Dec 2004
Posts: 16,906
Likes: 1,014
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Best area to wire this in..
no look at a pinout, did that thing come with a instructions?
http://www.diy-efi.org/gmecm/ecm_inf...6/89FTBI_4.JPG
https://www.thirdgen.org/forums/elec...6154-vats.html
http://www.diy-efi.org/gmecm/ecm_inf...6/89FTBI_4.JPG
https://www.thirdgen.org/forums/elec...6154-vats.html
Last edited by Tuned Performance; Oct 28, 2011 at 08:16 PM.
Thread Starter
Junior Member

Joined: Oct 2011
Posts: 10
Likes: 0
From: Kansas
Car: 1991 Pontiac Firebird
Engine: 5.0 TBI
Transmission: 700-R4
Axle/Gears: 2.73 ugh..
Re: Best area to wire this in..
The first pic.. just generic ones that say 12+, ground, the VATS line.. etc.. haha Nothing nearly as specific as the link you provied. Thanks for that man!
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From: Arlington, Tx
Car: 91 Camaro RS
Engine: empty bay (for now)
Transmission: Built T-56
Axle/Gears: 3.42 stock posi disc
Re: Best area to wire this in..
those things are ment for a wide range of cars, each one has a different pin location on the harness. so thats why you get generic instructions. if youre bypassing VATS, you will also need to ground out the start enable relay for the starter to spin.
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Thread Starter
Junior Member

Joined: Oct 2011
Posts: 10
Likes: 0
From: Kansas
Car: 1991 Pontiac Firebird
Engine: 5.0 TBI
Transmission: 700-R4
Axle/Gears: 2.73 ugh..
Re: Best area to wire this in..
Does that relay have a pin on the connector (I didn't see it on the pic) or is that part of that small little "junction" as I call it that mounts to the radiator support near the battery?
I get lost in all the relays these things have.
I get lost in all the relays these things have.
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Joined: Mar 2007
Posts: 3,525
Likes: 7
From: Arlington, Tx
Car: 91 Camaro RS
Engine: empty bay (for now)
Transmission: Built T-56
Axle/Gears: 3.42 stock posi disc
Re: Best area to wire this in..
the start enable relay is in the cabin, under the driver side kick panel
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