Oxygen Sensor Resistance?

2004 FORD TAURUS
160,000 MILES • 3.0L • V6 • 2WD • AUTOMATIC
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NIGHTHAWK4570
How many ohms should a properly functioning oxygen sensor read when testing the heater element of the sensor? Is there a specified value or range?
Mar 20, 2025 at 8:02 PM
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STRAILER
  • ✓ASE Certified Mechanic
  • 54,503 POSTS
  • ASE Certified Mechanic
Yes there is a reading that is deemed acceptable.

3 to 14 ohms

This is measured between the two heater wires, here is a guide to help you with the test:

https://www.2carpros.com/articles/how-to-use-a-voltmeter

Let us know how it goes.
Mar 21, 2025 at 11:53 AM
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