4l80e swap with stock ecu

[86bulletT]

trans is pretty much in the car and all that is left it wiring up the amp pro/mega squirt controller. anybody knows where I can tap the factory ecu for tach signal and also looking for throttle signal. i wanted to tap into the harness by the ecu since i have room to work there. TIA

 

[TurboBob]

I would get the RPM signal at ECM pin B4 (its a white wire), throttle position is the blue wire at C13

Bob