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Deleting Vats, is there a better way?

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Old Mar 3, 2012 | 04:07 AM
  #1  
utfan01ss's Avatar
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From: Chickamauga, GA
Car: 89 IROC-Z
Engine: 355ci SBC
Transmission: TH700R4 - 2500 stall
Axle/Gears: 3.70 9 bolt
Deleting Vats, is there a better way?

I have a 1989 L-98 IROC that has been having Vats issues recently. From time to time the car won't start and the security light comes on. If I let it set for a little while then try the key again it will start. I'm assuming this is the chip on the key, either the reader is bad or the chip is worn out. I'd like to can this BS security system so I don't have these issues anymore. Is there a better way to delete it other than buying the VATS module and splicing it into the wiring harness? Can a performance chip be burned to delete this feature from the computer?

Thanks
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Old Mar 7, 2012 | 08:11 PM
  #2  
Chris89FBForm's Avatar
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From: Oshkosh, WI.
Car: 1989 Firebird Formula
Engine: 305 TBI (For now?!?!)
Transmission: Auto-Stock
Axle/Gears: stock
Re: Deleting Vats, is there a better way?

Honestly the easiest way to do this is to test the resistance on the chip on the key, then go to Radio shack and buy resistors to match, splice into the wire that goes from ign. to Vats, and presto Vatts is overriden
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Old Mar 7, 2012 | 09:29 PM
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Re: Deleting Vats, is there a better way?

Or I can program it out for you. PM me if you want to go that route.
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Old Mar 7, 2012 | 09:40 PM
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: Deleting Vats, is there a better way?

Originally Posted by Chris89FBForm
the easiest way to do this buy resistors to match,
splice into the wire and presto Vatts is overriden
Doesn't over ride VATS.

Only " fools " the module into "thinking" the correct key is being used ( a input to the module).

If fault is with the VATS module itself or wiring ( a output ) to the ECM then resistors will do zilch.
Deleting VATS in the tune ( prom) is the only way of completely bypassing VATS
Starter relay bypass required
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Old Mar 8, 2012 | 05:49 PM
  #5  
zenish's Avatar
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From: stallings,n.c.
Car: 1989 camaro rs convertable
Engine: 305 tbi
Transmission: 700r4
Axle/Gears: 7.5"3.42 gears forth gen 2000 camar
Re: Deleting Vats, is there a better way?

Originally Posted by vetteoz
Doesn't over ride VATS.

Only " fools " the module into "thinking" the correct key is being used ( a input to the module).

If fault is with the VATS module itself or wiring ( a output ) to the ECM then resistors will do zilch.
Deleting VATS in the tune ( prom) is the only way of completely bypassing VATS
Starter relay bypass required
its cheap enough to try this.i don't see the problem.it fixed mine.
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Old Mar 8, 2012 | 06:20 PM
  #6  
vetteoz's Avatar
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: Deleting Vats, is there a better way?

Originally Posted by zenish
i don't see the problem..
Problem is ;
some like the poster above don't understand how VATS works and believe the resistor bypasses VATS completely

It ONLY fixes the most common VATS fault ; the key being read incorrectly or not at all.

Plenty on here in the past saying ;" I did the resistor bypass but my car still won't fire up; why not? "

Edit
Another one today
https://www.thirdgen.org/forums/post...395-post1.html

Last edited by vetteoz; Mar 9, 2012 at 06:33 PM.
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Old Mar 8, 2012 | 08:03 PM
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Re: Deleting Vats, is there a better way?

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Old Apr 23, 2012 | 03:03 PM
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From: Knoxville, Ia
Car: 88 Trans Am GTA 84 Camaro Z-28
Engine: L98 and a carbed 383
Transmission: auto but thats about to change
Axle/Gears: 4.11s
Re: Deleting Vats, is there a better way?

I have a 95 V6 3.4 and I just bought the Vatts bypass module... How do I know what wire is the fuel wire to splice into?
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Old Apr 23, 2012 | 03:10 PM
  #9  
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Re: Deleting Vats, is there a better way?

Originally Posted by TrAnSaMgTa1988
I have a 95 V6 3.4 and I just bought the Vatts bypass module... How do I know what wire is the fuel wire to splice into?
Just curious, how much did you pay for that?
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Old Apr 23, 2012 | 03:19 PM
  #10  
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From: Knoxville, Ia
Car: 88 Trans Am GTA 84 Camaro Z-28
Engine: L98 and a carbed 383
Transmission: auto but thats about to change
Axle/Gears: 4.11s
Re: Deleting Vats, is there a better way?

here is a link. I found this one after I bought mine from Hawks Third Gen. I paid $59.99. I geuss I would go with the Hawks Third Gen one though just for their reputaion...
http://www.bakerelectronix.com/products_vats/
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Old Apr 23, 2012 | 03:53 PM
  #11  
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Re: Deleting Vats, is there a better way?

Originally Posted by TrAnSaMgTa1988
here is a link. I found this one after I bought mine from Hawks Third Gen. I paid $59.99. I geuss I would go with the Hawks Third Gen one though just for their reputaion...
http://www.bakerelectronix.com/products_vats/
Seems like a reasonable price. Really not much to it but a resistor and LED and a diode. a couple bucks in parts but if it's easy to install, may be way to go for many people. I prefer to program it out myself. Thanks for the info.
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Old Apr 23, 2012 | 08:55 PM
  #12  
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From: Erlanger, KY
Car: 1989 Iroc-z
Engine: 350 TPI
Transmission: Auto 700R4
Axle/Gears: 9 bolt - 2.77
Re: Deleting Vats, is there a better way?

I bypassed the key on my iroc and still had a problem with it not cranking sometimes so just adding a resistor doesnt cure the problem sometimes. I ended up cutting the starter wire(yellow wire) in the ignition harness under the steering column and ran a new wire from it(column side) straight to the starter solinoid. Cranks and starts everytime now and havent had a problem since. My vats module is still working and turning on the fuel pump and injectors or whatever it turns on but the key is bypassed and the starter enable relay is bypassed. Dont have to rely on those parts now for cranking.
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Old May 9, 2012 | 12:03 PM
  #13  
Bryan Thacker's Avatar
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Re: Deleting Vats, is there a better way?

whats the wire from ign. to vats??1991 camaro rs 3.1L
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