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GM VATS Bypass Module For LS1 and LT1

Your Price: $17.95
Retail Price:$19.99
You Save:$2.04(10%)
In Stock.
Part Number:GMVATS
Quantity Pricing
  • 5 - 9
  • $16.16
  • 10+
  • $15.26
VATS bypass module is intended for use when installing a GM engine equipped with VATS (Vehicle Anti-Theft System) into a vehicle missing the BCM (Body Control Module), when resistor type bypasses just wont work, or for use with remote starting applications involving stock vehicles equipped with VATS. Our VATS bypass will also work to bypass failing VATS systems.
This bypass module generates the 'key OK' signal normally sent from the BCM, sometimes called the VATS decoder, to the PCM/ECM when the proper key is detected. Without this signal, the fuel injectors will shut down within the first 3 seconds. Normally it costs between $150 and $300 to have this feature deleted from the PCM. By using our module you will accomplish the same function for less and you won't have to ship your PCM/ECM to have it reprogrammed.
Module will work with:

GM 'F' body type vehicles from 1989 and up
93 and up LT1 with some exceptions after 95
98 and up LS1 with some exceptions
All VATS equipped GM (Buick, Chevy, Oldsmobile and Pontiac) vehicles from 89 to 02 that originally had the black resistor pellet in the metal part of the ignition key
All VATS equipped GM vehicles from 89 to 95, some engines made from 89 to 93
All VATS equipped GM vehicles from 89 to 02 that has a wire to the PCM labeled VATS, Fuel enable or Circuit 229
The module is a simple four-wire interface (power, ground, standard signal and 30Hz signal) and if installed with a detachable connector, it can be removed to enable the factory anti-theft system to protect your car overnight or at the car show. You can't do that if you programmed that feature out of your PCM/ECM.
This module comes equipped with a status LED that indicates that it is functioning.
Dual Frequency VATS Bypass generates both Standard VATS Signal as well as the 30Hz Signal all in one module.
Other Features include:
Microcontroller based for reliability and accuracy
Specially designed circuit board with 14bit processor.
Works on any 12V Ignition or Accessory wire (operates from 7V to 24V)
Reverse voltage protection in the event of incorrect power connections
Short circuit protection on all outputs to 12V or ground
Dual frequency: Standard VATS and 30Hz VATS
Lightweight (.5oz)
Small package (0.8in by 0.5in by 0.12in)


5 Stars
Great Solution
My 94 Camaro was down for months because of the VATS problem. I tried splicing in resistors to bypass the key, but that didn't work. I ordered a competing product that was over $250 and spend hours installing. It didn't work. I spent 3 weeks going back and forth with their tech desk, but they were of no useful help. I ordered this thinking I had nothing to lose. It took me about 10 minutes to install. I had already grounded the starter relay under the dash. My car started right up and runs perfect. I wish I found this months ago.
Did you find this helpful?  10 of 15 Found Helpful
Reviewed by:  from Georgia. on 11/5/2019
5 Stars
1993 Z28
It works! 1993 Z28 DOA multiple mechanics could not fix. Did some research grounded started relay installed this module now by Camaro runs again!
Did you find this helpful?  5 of 5 Found Helpful
Reviewed by:  from redondo beach. on 1/28/2022
5 Stars
After loads of head scratching trying to get my tpi 5.0l to run after an engine swap, it would fire and die, only firing from the 9th injector, this little gadget saved it going to carb. I made up all the 15 resistor values before I bought it but you need the body control module of which I did not have. A great gadget.
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Reviewed by:  from Uk. on 3/17/2024