Oxygen Sensor Resistance?

Tiny
NIGHTHAWK4570
  • MEMBER
  • 2004 FORD TAURUS
  • 3.0L
  • V6
  • 2WD
  • AUTOMATIC
  • 160,000 MILES
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?
Thursday, March 20th, 2025 AT 8:02 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 50,622 POSTS
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.
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Friday, March 21st, 2025 AT 11:53 AM

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