have purchase a EVO3 Power FC D Jetro( I think is the same as EVO 5 unit only come with the Adapator for EVO3). I have install it into my car with all the kit( Temp Sensor, Map Sensor..etc).

After I started the car the engine are not running smooth. and the Tacho are not running . I try Step on the Throttle and release it, and the Tacho started to move a bit than go back to 0 rpm . I can see the rpm on the Apexi commander show 1000rpm, but why is that the Tacho on the dash board are not running ? before I install the Pfc the Tacho are working fine...

Any one have come over this problem? how to solve it? or is that the connection problem.... any suggestion on how do I check it?