Alright so ive been battling this rev tach not working for a cpl of weeks...i finally get another cluster and that tach doesnt work...but worked in another car. SO its def somethign with my car. Anyone know where i go next??? If dizzy was going bad would it not send the signal for it no more? Maybe the wire is cut or freyed?? Could i run a new wire from ecu to tach to supply the signal, if so which wire??

Thanks
Brian

check all your fuses behind the dash. This happend in my B14. one was loose and now its back to normal.

Checked all fuses and none are bad