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Exhaust OxSensors on 2002 Ranger V6~4.0L~SOHC are located as pictured below:
~ Bank1Sensor1 @ Upstream RghtPassengerSide
~ Bank2Sensor1 @ UpStream LeftDriversSide
~ Bank1Sensor2 @ DnStream CommonCatConvertor
Make sure you're NOT changing the wrong OxSensor?
Assuming you're installing a "Universal" OxSensor that
has only a 4WireCable without a Plug & needs to be ButtSpliced to old OxSensor Cable?
What brand is the new OxSensor; hopefully Bosch or MotorCraft, so that wire colors are same as original factory sensor?
Last edited by DILLARD000; Mar 3, 2022 at 05:13 PM.
Below is the Harness~Cable WireColor info I have for my 2001 SportTrac V6~4.0L~SOHC;
suspect it's the same for your 2002 Ranger V6~4.0L~SOHC, but can not guarantee that.
Either Heater WhiteWire on each Sensor can be connected to 12v, it works either way.
Again this is for MotorCraft\Bosch OxSensors; other brands can have different colors.
Hopefully this helps. Click here for more information on NarrowBand4Wire OxSensors.
OxSensor11@RghtManifold
* SensorBlk/Blk~HarnessOrg/Org = Signal+ From 12v PowrFuse?? ??a
* SensorGra/Gra~HarnessGra/Blu = Signal- Into PCM Pin60 0.1~0.9v
* SensorWht/Wht~HarnessBlu/Org = Heater+ From 12v PowrFuse?? ??a
* SensorWht/Wht~HarnessRed/Wht = Heater- Into PCM Pin93 0.2~3.0a
OxSensor21@LeftManifold
* SensorBlk/Blk~HarnessOrg/Org = Signal+ From 12v PowrFuse?? ??a
* SensorGra/Gra~HarnessRed/Blk = Signal- Into PCM Pin87 0.1~0.9v
* SensorWht/Wht~HarnessBlu/Org = Heater+ From 12v PowrFuse?? ??a
* SensorWht/Wht~HarnessYel/Blu = Heater- Into PCM Pin94 0.2~3.0a
OxSensor12@RearCatCnvtr
* SensorBlk/Blk~HarnessOrg/Org = Signal+ From 12v PowrFuse?? ??a
* SensorGra/Gra~HarnessRed/Gra = Signal- Into PCM Pin35 0.1~0.9v
* SensorWht/Wht~HarnessBlu/Org = Heater+ From 12v PowrFuse?? ??a
* SensorWht/Wht~HarnessWht/Blk = Heater- Into PCM Pin95 0.2~3.0a
Last edited by DILLARD000; Mar 5, 2022 at 06:02 AM.