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Ask -Brad- Your Own Question
-Brad-, Dodge Dealership Tech
Category: Dodge
Satisfied Customers: 7837
Experience:  16 Yrs Chrysler/Dodge Technician. ASE Master Certified(L-1)
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O2 sensor wire colors up and down stream and where they

Customer Question

O2 sensor wire colors up and down stream and where they connect on new sensors that only have two white wires a black and grey. the connectors burnt off on exhaust. 2001 ram 1500 automatic with 5.9L v8. not california emmisions.
Submitted: 1 year ago.
Category: Dodge
Customer: replied 1 year ago.
the wire colors on front sensor are different colors than on rear sensor.
Expert:  -Brad- replied 1 year ago.

If your referring to the actual O2 sensor wiring between the connector and the sensor then I would highly suggest just replacing the sensor and not wiring it back up.

Customer: replied 1 year ago.
i have new senors but the connectors on them. the problem is both connectors on harness side melted off on pipe and i have four wires for front sensor and four for back. i don't know what color to mate with the white, black and grey that are on new sensors.
no connectors on truck side of harness to connect to new O2 sensors
Expert:  -Brad- replied 1 year ago.

Can I get the last 8 of your VIN to grab a wiring diagram for you?

Customer: replied 1 year ago.
1J214521 sorry cant use phone at moment
Customer: replied 1 year ago.
thats last eight numbers.
Expert:  -Brad- replied 1 year ago.

Sorry for the delay(Lunch)

I attached the wiring diagram for you..

I hope this helps,


Customer: replied 1 year ago.
thanks ill look at it soon and let you know...
Expert:  -Brad- replied 1 year ago.

Sounds good...

Glad I could help and thank you for the positive rating,


Expert:  -Brad- replied 1 year ago.

I see you haven't rated yet, do you need more help?

Expert:  -Brad- replied 1 year ago.

I see you haven't rated yet which means I have not been credited for helping. Don't forget to honor your good faith deposit by rating my assistance..

Thank you and have a great day,