do i need to flash the 05 escalade ECU for the 06 4.3 v6 vin# in order for the truck to start
2006 silverado 4.3 w/ a complete 05 escalade 6.0 motor swap ,harness ,ECU DBW swap, ect...
still has the v6 ignition system just motor/trans and ecu wiring has been canged??