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How to wire a tach


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#1 smith

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Posted 23 June 2003 - 11:36 PM

I have a tach that I picked up

today. The wiring is prety stright forward. Except for the wire for the tach signal. The instructions said to wire it in to the

ignition module, but some one else said to run the wire to the power train module which is located behind the power steering

reservoir to a white wire with a black stripe.

Has anyone hooked up an aftermarket tach (I'm sure you did)? If

so did you hook into the ignition module or the power train module?

All input is greatly accepted.

Thanks

Guys.

#2 BuckeyeSVT

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Posted 23 June 2003 - 11:52 PM

Ok. I have - Many of

them.

Some later 1998 models through 2000 have the white/black stripe wire already pre-wired for the instrument

cluster. I would suggest looking there first before tapping directly into the PCM - That is a last option idea because any

short of that signal will cause other systems to malfunction... (I.E. Auto trans, Cruise control...)

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-Doc

#3 smith

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Posted 24 June 2003 - 12:04 AM

If it is there all the wiring

can be done within the car, no holes dirlled in the firwall.

Thanks Doc.

#4 Terry Haines

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Posted 24 June 2003 - 07:55 AM

FWIW on a Contour/Ford

the 'powertrain' and 'ignition' module are one and the same!

#5 smith

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Posted 28 June 2003 - 02:29 AM

Hooked it up, works

great......thanks guys.