[RICK LAKE]

Zedn If the ecu was programmed with a Vats system in it, YOU can't remove the software without a whole new programming. Just because you removed the wires from the connector doesn't mean the thief system is dead. it is hard programmed into the ecu. No signal or wrong signal, No start. The thief system kills fuel pump, or spark to the plugs or injector pulse. You will get a 1 shot of fuel into the motor and that's it. Motor will start and stall within 3 seconds. 3 times of this and the system shuts down for 10 minutes. Keep doing this and then 30 minutes. thief system relearn will need to be relearned or a 12 minute tech 2 with candi in the thief system of the bcm or thief module, depending on which system. It's all in the software, Hey where's Bernie??? Rick L. PS 98% of all ECM, BCM, IPC, are repaired and sold as remanufactured. The programming needs to come through GM TAC system at a GM dealership. You may be able to get an aftermarket program to get the car running but will need to do a total programming of the motor from start to WOT. Good luck. Rick