ok, I have a TII swap in to a 1st gen with a micro tech ecu. All is woeking great but I have a tac problem. My tac gauge is jumping at idle and it gets worse with the lights on. Also seems like my alternator is getting hot. any help in fix my problem would bet great.

thanks

 

Microtechs (especially the older ones) dont fire the trailing plugs under 1000 RPM, so that will cause the tach to jump at idle.

Rat