Indicated that "Bank 1 Sensor1" required replacement

Tiny
F0RT_BRAGG
  • MEMBER
  • 1999 FORD RANGER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 120,000 MILES
The computer output on the above vehicle indicated that "Bank 1 Sensor1" required replacement. Which sensor is that?
Friday, December 26th, 2008 AT 10:15 PM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

The bank 1 sensor 1 oxygen sensor is located on the right-hand side (if you are facing the engine) exhaust manifold, before the catalytic converter.

https://www.2carpros.com/articles/how-to-test-an-oxygen-sensor-02-sensor
https://www.2carpros.com/articles/how-to-replace-an-oxygen-sensor

I have attached diagrams for your reference.

Please let me know if you have any questions.
Thank you.
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Thursday, October 28th, 2021 AT 8:32 PM

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