ECM Wiring Diagram

[David A. Cooley]

At 03:46 PM 12/29/98 -0500, you wrote:
>
>I'm confused by this.  If the white wire doesn't go to the ECM, where does it
>go and what is it's purpose?  Can I still get it from inside the car somewhere
>like I originally thought, or will I have to run that dreaded wire out to the
>coil?

It runs from the ignition module to the ignition coil.  There is an
ignition pulse feed to the ECM in the car, but it is a VERY low current
signal and loading it with an accessory such as a remote starter could
cause problems (IE Burn up the ECM)...
If there was a factory option for a tach, the wiring harness should have a
wire leading to the dash just waiting for a tach... they liked to use one
harness for all the vehicles so as not to have different parts for the same
make/model.
A wiring diagram would help you a lot!
If there was no in-dash tach option, then you will need to tap into the
white wire that goes from the distributor module to the - side of the
ignition coil.  When you run it through the firewall of the car, make sure
you use a grommet!
Later,
Dave

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           David Cooley N5XMT           Internet: N5XMT at bellsouth.net
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