Need O2 sensor help quick!!!!
Thread Starter
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Freshman User
Joined: Oct 2007
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Need O2 sensor help quick!!!!
Im really hopin someone out there can help me! I just bought a universal o2 sensor for my 1996 F250 351, and i have to wire it to the existing connector on the truck. Both the new sensor and existing connector have the same 4 color wires: black, grey, and 2 whites...but how do i know which white wire matches up to the other white wires? does it matter? i really need a wiring diagram or something...any help would be greatly appreciated!!!!!!!!!!!!
Lead Driver
Joined: Nov 2002
Posts: 9,555
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From: Concord, NC
The polarity of the white wires do not matter. They connect to a resistive heater, so as long as current is flowing through it, it will generate heat regardless of which direction the current is flowing.
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Freshman User
Joined: Oct 2007
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Alright thanks, helped alot! but i have another problem...i hooked everything up, and took the truck for a test drive, and im hearing a whistling noise that i dont know where its comin from? maybe around the area of the new o2 sensor? please help, tis is my daily driver and i dont need to screw more stuff up!!!!!
