Video: Bench testing an ECM / Wire Harness

[dave w]

I needed to test a computer so I hooked up a few wires and tested to see if the noid light, and fuel pump relay test light would work.

dave w

[EagleMark]

Ok, next time I finish a system on my bench I'll show you one running, with a spark plug hooked to coil, noid lights on injectors, Check engine light on till engine started then the laptop hooked up showing data and NO error codes!

EDIT: Ok no video but here's a picture of one running with a drill hooked to distributor hanging down the side of the bench running. And another running of a JimStim!

[dave w]

I was testing to verify that the VATS programming was disabled. The test light connected to the fuel pump relay was confirmation VATS was disabled.

dave w

[EagleMark]

That's a good way to test!

Fixes the problem for conversions. But on cars that came with VATS it turns off fuel in PCM and also disables starter in car. The starter is much harder to disable, I tried on my B body and the VATS module, wiring and starter relay are impossible to get to unless you take out entire dashboard. It's the first thing that goes in against firewall on left side...