Simple ? on VATS
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Supreme Member
Joined: Jul 1999
Posts: 2,149
Likes: 4
From: Mims, Florida
Car: '87 IROCZ
Engine: 395 ZZ4
Transmission: ProBuilt 700R4
Axle/Gears: 9 bolt 3.70s
Simple ? on VATS
Using TunerCat, with a '91 Firebird ($8D), if I un-check the VATS box do I disable the VATS??? Is it that simple?
Joined: Apr 2004
Posts: 3,180
Likes: 3
From: Browns Town
Car: 86 Monte SS (730,$8D,G3,AP,4K,S_V4)
Engine: 406 Hyd Roller 236/242
Transmission: 700R4 HomeBrew, 2.4K stall
Axle/Gears: 3:73 Posi, 7.5 Soon to break
Just to clarify, It will remove the need for the VATS output to the ECM (enabling fuel) Engine will start if cranked.
If you have a start interrupt relay that operates from the VATS it is another issue. ECM does not run it, the VATS module does.
If you have a start interrupt relay that operates from the VATS it is another issue. ECM does not run it, the VATS module does.
Joined: Mar 2000
Posts: 1,692
Likes: 1
From: Corona
Car: 92 Form, 91 Z28, 89 GTA, 86 Z28
Engine: BP383 vortech, BP383, 5.7 TPI, LG4
Transmission: 4L60e, 700R4, 700R4..
Axle/Gears: 3.27, 2.73
What years and where is this start interrupt relay located?
My GTA sometimes just wouldn't crank once warmed up, so I'd hotwire it under the hood (key on, and put +12V to the thick purple wire near the passenger side injectors).
I never had time to diagnose if it was VATS, P/N switch, Ignition switch problem, or whatever, but I'll be back in Cali soon for a short stint, and wouldn't mind spending some time to get that straightened out.
My GTA sometimes just wouldn't crank once warmed up, so I'd hotwire it under the hood (key on, and put +12V to the thick purple wire near the passenger side injectors).
I never had time to diagnose if it was VATS, P/N switch, Ignition switch problem, or whatever, but I'll be back in Cali soon for a short stint, and wouldn't mind spending some time to get that straightened out.
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Joined: Feb 2004
Posts: 326
Likes: 0
From: Colchester, CT
Car: 1987 Iroc, 1987 MCSS TPI
Engine: 5.7L
Transmission: 700R4 in both
Originally posted by JP86SS
Just to clarify, It will remove the need for the VATS output to the ECM (enabling fuel) Engine will start if cranked.
If you have a start interrupt relay that operates from the VATS it is another issue. ECM does not run it, the VATS module does.
Just to clarify, It will remove the need for the VATS output to the ECM (enabling fuel) Engine will start if cranked.
If you have a start interrupt relay that operates from the VATS it is another issue. ECM does not run it, the VATS module does.
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