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Thread: 99 Suburban 5.7 VATS removal

  1. #1
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    Default 99 Suburban 5.7 VATS removal

    Ok guys, I've read that VATS can be tuned out of the PCM under theft >g1201.

    I have a customer with an intermittent b2947/b2958. Rather than a $250 module + install labor, will turning VATS off allow the fuel pump relay to close and the truck to run?

    Just trying to come up with a best scenario

    Thanks
    Will

  2. #2
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    Default

    Anyone?

  3. #3
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    As far as I know setting B1039 to Disable will do the trick. I have never tuned a Black Box PCM with EFILive. I use Tunercat for the 96-2000 Black Box PCMs.

    Jeff
    98 GMC RCSB 2WD, Internally stock 305 w/Twin T-3 junkyard Turbos,4L80e,Ramjet intake,42lb.inj., 0411PCM, COS3,4675LBS w/me in it. Best Time on 5 passes-13.01@110

  4. #4
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    Just saw this reply! The truck is still at the shop. Bought a "new Rockies" module bypass kit. It was a waste. Thinking I may just buy a vin license for this thing...

  5. #5
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    If anyone else ever runs into this disabled passlock on the L31 ecm today, caused a flashing security light, removed the evo module, no light and dead reliability for my customer now.

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