Truck isnt getting spark anymore. im at the end of my rope lol

[Botlfed]

Light it on fire

that aint no shit im almost to that point, so even though it is tuned, and I switched out PCMs to make sure I didn't fry one, is it possible that the vehicle theft system in the BCM is causing this, there is no security light on, im just asking should I do a security relearn even though vats is off

[Oldspimp]

You need to see if the computer is reading rpms, do the injectors pulse? That will give you a starting point. If the security light goes out with ignition on its fine.