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Mike S.
Mike S., Chevy Mechanic
Category: Chevy
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Experience:  ASE Certified Master Technician
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1994 chevy: oxygen sensor harness plug..pickup

Resolved Question:

oxygen sensor harness plug in location 1994 chevy k1500 pickup. i have the sensor but cannot find where to plug the harness into.
Submitted: 5 years ago.
Category: Chevy
Expert:  Mike S. replied 5 years ago.

Is it a single wire O2 sensor or a 4 wire heated O2 sensor?

Here are the diagrams for both.

Oxygen sensor (02S) wiring diagram
graphic

Heated Oxygen Sensor (H02S) wiring diagram
graphic

 

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