bluehawk2

iTrader: (74)

I am installing BS3 on a 99 trans am and I cannot get the factory tach to work.

I piggybacked the wires to the bs3 crank sensor.

I can read rpm on hptuners, but I cant get the gauge to read rpm.


The factory gauge cluster does work. I have voltage and oil pressure reading correctly


What am I missing?


thanks

bluehawk2

iTrader: (74)

I spliced into the cam sensor and that worked!