Mock up of harness
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Mock up of harness
I am trying to test the 2000 5.3 harness that I made into a stand alone. I have the harness hooked up to my mocked up engine and have the harness powered and grounded. When I hook up my scanner to the new OBDII connector. The scanner connects but then won't read any data. After all that. My question is. Do I have to disable VATS before the ECU will recognize my harness and sensors? Thanks in advance for any help that you can give me.