Car Alarms: 97 camaro alarm, vats bypass, dynamic spectrum

Question
I bought a 97 camaro, the security light was on all the time.  When I would unlock the door after locking the doors, I would have to start the car immediately or the horn would honk repeatedly.  I bought a JET Dynamic Spectrum Tuner and used it to download the factory parameters, then upload my changes which included apparently checking a setting which was to disable the VATS system.  Now when I start the car the "service engine soon" light flashes rapidly, the security light is on, the cooling fan or fans are on, the engine starts then dies.  I unhooked the battery for 12 hours.  Same thing.  I've tried locking and unlocking the doors from the outside.  Same thing.  What happened and what do I need to do to fix it?  Is the PCM damaged?  I've already contacted JET and they don't know what to do.  Thanks.

Answer
Unfortunately, this vehicle has a the Original VATS key
based engine disabling system, and it's currently
engaged. The ignition does not recognize
the your key switches sensor any longer.

A bypass is required to circumvent.
If left unchecked, it will lock down the fuel injector
rail (as it has now), and you will need to
tow it in to GM for evaluation, and resetting.

But, if you want to just remove this system
from the equation entirelly,
I suggest the PLJX bypass kit to get around
this VATS (VEHICLE-ANTI-THEFT-SYSTEM)
issue.

This VATS Bypass Module is designed to momentarilly
allow the engine to remote start by sending a proper
coded pulse to open the fuel rail passlock injector
cut off circuit.

The output from an alarm/remote starter
would then shut down the pulse, once it has detected
the engine has engaged, and preserve the integrity
of the passlock system.

That is it's designed purpose.

However, in your case, this input wire on the PLJX module,
instead of going to a momentary ground pulse from
an alarm/remote starter,
would go to a constant chassis ground, through
the bypass module, grounding out the VATS.
The VATS would then always be bypassed as long
as that wire is chassis grounded.

I can not speak about a damaged VATS system,
like if a thief has destroyed it, because I do not
get into this part of GM'S security application.
But as a happy coincidence to installing
after market remote starters, this does work on bypassing
passlock in most all GM vehicles we've run into,
including your year GM vehicle as well.

Also, this is a self learning, resistor sensing
and adjusting module. Once the VATS wires have been tapped,
you would press the program button to learn,
and it does. The car should then allow start
with any hardware store key.

It will likely work on yours as well.
Regards,

Robert Martin-ALARMTEK/CEO
Master Technician
Mobile Security Electronics
www.PASSLOCK1.com