Now that I have re-read the post....the lock up will not work with the ECM out of the mix....
The ECM controls the ground side of the solenoid to energize it. You should have 12v at the connector even without the ECM in the loop, so what you need is a ground, which you can provide either with a toggle switch(on/off), or by re-wiring the harness inside the trans. The trans has a pressure switch inside that closes at a specific pressure, which happens to correspond to a specific MPH. You would need to change the pressure switch to one that closes around 45-50 psi/mph, and then cut one wire, and run it to ground inside the trans, and then your lock-up will engage as soon as the pressure switch closes.
Sounds a lot harder than it actually is to do. I think I have a wiring diagram specifically for this mod somewhere. I'll look for it....
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Joel Adams
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