cobbcfi
Petty Officer 2nd Class
- Joined
- Jun 30, 2010
- Messages
- 150
I replaced an old tach with a multifunction gauge and it worked fine for a few trips but it started to come and go and now it's out but the backlight still comes on.. It's obviously getting powerto , so where am I looking for the fault? Is it a wire to the engine that is not sending a signal or would it at least show zeros and have some kind of readout? Has the unit failed?