Trying to find a lead to use for RPM input data to a Traqmate Data Aquisition system. Does anyone know what wire I can tap into?

 

when I installed a Stewart Warner shift light, I patched into the blue/black wire from the coil, from which there are three wires. The other two are red and red/black... This is on a early 03 MCS.

The blue/black is a negaitve pulse, and that's what I think you might need...

Hope this is of some help.

 

pin 9 of the OBD-II connector is a RPM signal. It runs at 2x what you think it would, but there will be a way to cal this (there is in the MSD unit, which is pretty much the same thing) Look at the JCW shift light install doc on motoringfile, I think....

Matt

 

Heck, a few years ago, I was only aware of the coil wire. If you can avoid splicing into the coil wires, I'd recommend that. Ask me why I know!

Matt, still looking to hear from you on that trike you told me about. Get my emails?

 

but the house is just getting cleaned up, so I haven't found all the car mags yet.

Matt