Quote Originally Posted by Scottydoggs View Post
check the fuse box for a blown fuse, the cig lighter fuse also works the obd2 port.

did you take the starter off? maybe the wires are on wrong? you got 3 grounds on the trans bell housing? maybe one broke off? or the loop is loose, we've seen that one before.

as far as the throttle response, you got all the vac lines hooked up correctly?
I will recheck all fuses. but on the wiring diagram for my 06 the power to the DLC comes from the Onstar ALDL fuse and has power at fuse and orange wire. i have tested the pin at the DLC to ground and get source voltage. The scan tool turns on but just does not communicate.

Yes the starter was off and i verified the wiring. my model does not have ABS so one of the grounds that goes to the transmission is not on my model like the ones with ABS. Good question on the vacuum line routing i will verify that next.

A little side not though on my top swap i did not swap over GTP wiring. so i dont have the wiring for the TC on the BBV and using the stock Map wiring to the 2 bar map from a GTP and do not have the BAP sensor wiring/ sensor either. COuld that cause an issue i informed zzp this when i sent the ecm in for tuning.