ok the engine transmission and ecm all came from the same truck so everything matches but the security thing would be an issue?Originally Posted by RedHeartbeat
If it starts and runs for a couple seconds and then dies, that is most likely the VATS/PASSKEY killing the engine so the vehicle can't be stolen. You need to have it disabled in the tune.
Yes, VAT/PASSKEY is related to the ignition key, switch, steering column and BCM sending the correct signal to the PCM.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
Well no progress made over the past few months the Coast Guard has had me bouncing all over the map. But I am back in Tn. another 2 weeks and I can get back home and work on my truck some. I did get another computer for it as that seems to be why it will not stay running. Truck will fire run about 5-8 seconds and stumbles and falls if you try to accelerate it wants to stay alive but dies. I got the OBD2 port hooked up and it is reading codes for the drive by wire set up so I guess it was not properly deleted. The new computer is OEM for DBC, just have to get it tuned and maybe that will fix my problems.
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