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Location of the O2 sensors

Tiny
AUDIEFAITH
  • MEMBER
  • 1994 CHEVROLET ASTRO
  • 6 CYL
  • AWD
  • AUTOMATIC
  • 238,000 MILES
Running rich, horrible mpg, lack of engine power, fouling out plugs on the right side, black smoke bad exhaust smell. Where are the 2 O2 sensors located and how to test them and/or replace them?
Thursday, October 7th, 2010 AT 10:17 PM

1 Reply

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Sure, here is a guide to help you test the oxygen sensors and the location of the sensor in the images below

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

Check out the images (Below). Please let us know how it goes
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Friday, October 8th, 2010 AT 4:30 PM

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