105 1hz tacho and oil pressure gauge not working.

[Macka360]

Hey everyone new member just wanted to see if anyone has had any drama with the 1hz tacho and oil pressure gauge not working and how to fix? All other gauges work correctly.

 

[StarCruiser]

Hi,
Silly stuff first, have you checked fuses and fusible links are all intact? Also have you checked that your alternator is charging at the correct 14.4v +0-3?