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Oxygen sensor wire harness color codes


NIGERIAN RANGER

Well-Known Member
Joined
Sep 13, 2020
Messages
146
City
Lagos, Nigeria
Vehicle Year
1998
Transmission
Automatic
When o recently replaced the engiuof my ranger 3.0l 1995, I mistakenly pulled the passenger side wire harness off of the connector, and now, I can't really figure out, which exact pinouts on the connector, each of the wires plug into.

Can anyone please provide any information as regards which wire goes to where on the connector?

Thanks
 
List the colors of the 4 wires you have loose
i.e.
light blue/orange stripe
solid orange
???
???

Also is this the passenger side O2
Drivers side O2
or rear O2
Each is different
The wires attached to the O2 sensors are the same colors usually but the vehicle's wire harness colors are specific to each location
 
Last edited:
List the colors of the 4 wires you have loose
i.e.
light blue/orange stripe
solid orange
???
???

Also is this the passenger side O2
Drivers side O2
or rear O2
Each is different
The wires attached to the O2 sensors are the same colors usually but the vehicle's wire harness colors are specific to each location

Here are the pictures.
Pic 1: that's the connector of the oxygen sensor where the oxygen sensor wire harnesses got pulled out from when I was swapping the engine.
The wire colours here seems to be different from the colours of the wires of the oxygen sensor side that's on the front passenger side exhaust.

Pic2: here's the wire colours of the oxygen sensor from the exhaust on the passenger side.

Which of the wires is going to which part of the connector pinouts on the engine side pls?
Thanks
 

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Pic2: colour codes are, 2 whites, 1 black, and 1 grey. Where would they individually fit in on the connector pinouts?
 
2 whites, 1 black, and 1 grey are standard Bocsh O2 sensor colors, these wires come attached to the new or old O2 sensor
2 whites are the heaters 12v and ground, no order, so same colors
black is sensor ground
grey is sensor signal

The Vehicles colors are what you need to match up

What are they?
I can't tell from the picture
 
2 whites, 1 black, and 1 grey are standard Bocsh O2 sensor colors, these wires come attached to the new or old O2 sensor
2 whites are the heaters 12v and ground, no order, so same colors
black is sensor ground
grey is sensor signal

The Vehicles colors are what you need to match up

What are they?
I can't tell from the picture
Would check out the vehicle colours and get back
 

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