Quote Originally Posted by SlowNA06 View Post
Wait... do you? I've been trying to figure it out because my luck's been hit-or-miss. Would be totally helpful if someone here actually had it down to a science on these engines.
Havent tested it, but there is a white wire that is hidden in the ICM harness... might want to try taking it to ground, or just wrapping around it somehow... its the "legit" tach signal wire for the car.