Oxygen sensor testing

Tiny
JAMES CROTHERS
  • MEMBER
  • 2003 MAZDA PROTEGE
  • 2WD
  • MANUAL
How can I test an oxygen sensor for a 2003 Mazda Protege?
Monday, January 10th, 2011 AT 6:50 PM

1 Reply

Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
See diagram from term"A" to "B" place analog volt meter start car increase speed to 3000 rpms volts.5 to.7 increase and decrease engine rapidly volt meter should go up and down. Then test resistence from "C" to "D" front O2 5.6 ohms rear O2 15.6 ohms
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Monday, January 10th, 2011 AT 6:58 PM

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