SOLUTION 1

50/50 chance this will work.

If your car has an EDIS module, try connecting to PIN 3

EDIS is the ignition control module (BLACK and FLAT bolted to metal plate or body work)

This is the ignition control signal from the ecu that is at a 5 volt level.

(Double check you are on the right pin !!!!!!)

The pin numbers are marked on the edis connector on the module itself.
Should have 12 pins in total.

Depending on ecu software, this signal may be available on every spark
so acting like an rpm signal. On SOME cars this only gets updated when
the ignition advance changes.


SOLUTION 2 to follow...