I've searched the board, and never found a definite answer to which wire to tap for RPM's, either #58 Tach signal or # 89 Crankshaft sensor. I’ve seen on the board that people have tapped either wire with success, and not so much success with either wire. I was wondering if it mattered what model year the car is. I have a 2005 Evo if that matters. A little clarification would be great. My turbo timer is on the way.

-Eshark

 

bump- anyone?