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Thread: Question about the VAT key and car not starting intermittently 98 Trans Am

  1. 06-08-2022 #1
    Musky@RG
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    Question about the VAT key and car not starting intermittently 98 Trans Am

    Hey, guys. I'm having an issue with a customer vehicle and just trying to determine if it's a VATS issue or a MAF issue. Occasionally the car won't start and when this occurs the MAF sensor reading remains at 0. I'm wondering is this a result of the VATS not being satisfied or is it the MAF itself acting up. I have disabled the VATS and the car is running currently, but I'm wondering if the issue could be a intermittent MAF issue?

    Thanks in advance
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  2. 06-08-2022 #2
    blindsquirrel
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    On that platform it disables the starter relay and injectors, and turns on the security light for 3 minutes if you use an incorrect key (or if the tiny little wires thru the column break, like they all do). If you get a crank-no-start and no security light then it wasn't VATS.
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  3. 06-09-2022 #3
    TheMechanic
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    Unplug the MAF and see if it starts during the failure.
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