tach in a ranger w/ 8 plugs

[DngrRngr2]

I need help please i have a 95 ford ranger and i am trying to equip it with a tachometer but it has 8 plug wires instead of four i have heard that you have to dissassemble the tach and do sumthing to it to make it work properally any suggestions to aid me in this task?

 

[rwenzing]

Follow the tach manufacturer's instructions to set the tach for 4 cylinders. You don't have to change anything else.

Then locate the factory tach signal wire (tan/yellow) and connect it to the tach per the manufacturer's instructions. The T/Y runs from PCM pin 48, then through the firewall connector and on to an instrument cluster plug.

 

[DngrRngr2]

my buddy whom works at good year mentioned something to me about having to rewire the inside of the tachometer somehow to make it read right i aint exactually sure what he means but he did have a ranger when i met him and he did race it but he doesnt remember what he had to do to tha tach and i dont want to mess it up

 

[rwenzing]

If you use the factory tan/yellow tach wire, the PCM will put out the correct pulse frequency for your 4-cylinder, regardless of whether it has 4 or 8 plugs.

Then all you have to do is setup the tach for a 4 cylinder per the tach manufacturer's instructions. The most common aftermarket automotive tachs can be configured for 4, 6 or 8 cylinder engines.