Im finishing up my S5t2 swap and everything was ready to start, once i turned the key over it turns but wont start up, i test the spark, no spark, with new wires and plugs. next thing test the coil packs, there both good and there from the t2 motor. i noticed a ground located near the trailing coil pack was poorly grounded ( black/yellow) so i grounded that, still nothing. as i look at my insturment lights there is no check engine light, which on some cars means the ecu isnt getting power.
With all that info can anyone tell me a way to locate this problem, maybe like a way to test the ecu to see if its any good or something like that.

 

did you make sure the CAS is plugged into the wiring harness?

if you turn the key to on and have the CAS detached from the motor and plugged in when you spin the CAS it should fire the coils.

 

check the airflow meter.

 

Aw, shucks. A ground wire near the Trail coils that is black/yellow? And you...........grounded it? Aw. Too bad. That's part and parcel of the power wire for the Lead and Trail Coils. Ain't no ground and should have been plugged into a condenser and the CONDENSER should then have been grounded.

 

The air flow meter is ignored until the car is running. If the air flow meter is bad the car will start but die immediately.