Guage swap now tach is off

[mazdamayham]

I have a 95 Mazda B3000 and did the sport trac white face guage swap. Everything works fine except the temp (known issue) and tach. The tach is off like a speedo would be if changing tire sizes to a larger tire, progressively off. Has anyone else had the problem or knows how to fix it? I

 

[Ranger Sport Honduras]

your old cluster had a tach?

 

[mazdamayham]

yes it did, thats how i know the sport trac tach is off.

 

[Ranger Sport Honduras]

thats weird i did the swap and mine works fine
try swapping the tach module from your black cluster to the white one, to see if its the tach device whats wrong or the circuit board