


Thanks for the Help

While doing some Checking / Tightening underneath car, found a Square plug with 4 wires; Black, Black w/Red stripe, Blue w/Green stripe,& Brown w/White stripe hanging near Starter, not connected to anything.
This car is a Twin Turbo car ( RSI)with original computer still connected & an AEM connected also. Looks like origional wiring harness. Anyone with any idea what it's for ?
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Thanks for the Help![]()
Thanks for the info. Runs w/o it connected, so I'll just tape it up,According to the FSM 8W-30-6 that would be the left bank *post* cat O2 sensor plug. Probably simm'd out somewhere or not used with the AEM.