Author Topic: How do I hook up the tach? (Read 5150 times)

spencebm · « **on:** May 18, 2008, 07:51:37 am »

I have come across a tachometer and need to swap it in my car. I have done some searching and found little about actually running a wire from the W terminal to the tach in the cluster. What kind of pick up wire should I run and how does it fit into the cluster? Any help would be great! Thanks!

gigaz2 · « **Reply #1 on:** May 18, 2008, 08:48:58 am »

any kind of insulated wire, its just a signal, no current.

your tachometer is a diesel one right? aftermarket stuff is 99% gas, and they don't work with W signal.

even so you can always improvise an pickup, optical or Hall effect.

Vincent Waldon · « **Reply #2 on:** May 18, 2008, 12:54:22 pm »

Here's the chart you need to determine what cluster pin goes to the W terminal:

http://www.xjamiex.com/mk2resource/electrical/CE2cluster.html

And yeah... it needs to be a diesel tach (only goes to 5.5K). If it goes to 7K it's a gasser tach and won't work directly... lots and lots of data here and at www.vwdieselparts.com on options.

spencebm · « **Reply #3 on:** May 19, 2008, 06:16:43 am »

thanks for the help