[markolson]

I have done a write-up on how to test your 94-98 tachometer and speedometer using simple, easy-to-get equipment, and attached it to this post.

 

[josh02gt]

good info thanks

 

[gabrielsousa]

how many amperage we need for the 12V Power Supply

 

[markolson]

Good question. The tachometer and speedometer each uses less than 250mA, so any regulated supply of that capacity or higher will work.

 

[gabrielsousa]

thanks a lot for the information