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O2 Sensor Wiring


JimJa1943

Active Member
Joined
Feb 22, 2010
Messages
43
Vehicle Year
'05
Transmission
Manual
'05 Ranger 4L. There are three o2 sensors, one on each cyl bank in front of the cat, and one behind. Each sensor has four wires; 2 x white, 1 x Black, 1 x Gray. Which one goes where. I'm looking for which wire(s) actually provide the ECU input to adjusts fuel/air mix. Anyone know?
 
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