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Old 09-07-2010, 03:28 PM   #1
6772owner
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Re: LT4 swap

Ooooops, sorry I forgot to answer that part, yes VATS is the Vehicle Anit-Theft System. It wont allow the vehicle to run more than a few seconds without the proper "key" inserted into the ignition. The GM keys for these engines have a resistor built into them that has to be the proper value to "unlock" the VATS system. This is why when we swap them we have to defeat this feature to allow installation in our trucks.
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Last edited by 6772owner; 09-07-2010 at 03:28 PM. Reason: text
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Old 09-07-2010, 03:35 PM   #2
dave69
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Re: LT4 swap

Quote:
Originally Posted by 6772owner View Post
Ooooops, sorry I forgot to answer that part, yes VATS is the Vehicle Anit-Theft System. It wont allow the vehicle to run more than a few seconds without the proper "key" inserted into the ignition. The GM keys for these engines have a resistor built into them that has to be the proper value to "unlock" the VATS system. This is why when we swap them we have to defeat this feature to allow installation in our trucks.
Sorry forgot to ask if you know who to send the ECM to for reprograming.
Also I have not taking all wiring and modules etc. from under the dash should I take it all out and what is needed?
Do you know how I can ID all of the senser and mudules I know a lot of them, but not all.
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