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Volvo RWD 200 Forum

INDEX FOR 11/2009(CURRENT) INDEX FOR 4/2009 200 INDEX INDEX (NO RELOAD) [<<]  [>>]

VIEW    READ ONLY    PRINT   SAVE   A    A  '89 245 oxygen sensor reading weirdness 200 1989 posted by  hackneyed1 on  Fri Apr 24 07:53 CST 2009 Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS]     [IGNORE ALL POSTS] last visit: Mon May 4 12:29 CST 2009 [RELATED] The issue: ’89 245. CEL with a code for 113 that has been concluded as running too rich (<8MPG!). If I disconnect the Oxygen sensor single wire and test its voltage to ground I get a nearly 1v reading meaning, full rich. I have tried other 02 sensors and gotten the same reading. The green wire (to the ECU) when disconnected from the O2 sensor wire reads approximately .5v (when tested to ground). Apparently that a reference voltage. BUT! When I plug the O2 sensor wire into he ECU green wire the and clip the test lead on (with the other to ground) the voltage drops to zero volts. Does this mean I have a bad ECU? Mark this post as an answer to my question<- Use this feature to mark quality replies to your post. Select, copy to buffer, and paste anywhere: <a href="http://www.brickboard.com/RWD/volvo/1345648/220/240/260/280/89_245_oxygen_sensor_reading_weirdness.html">'89 245 oxygen sensor reading weirdness</a>

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• '89 245 oxygen sensor reading weirdness-SOLVED! [200][1989]
  posted by  hackneyed1  on Tue Apr 28 08:54 CST 2009 > V
  • Thanks for the feedback! [200][1989]
    posted by  machine man  on Tue Apr 28 11:09 CST 2009 > V
    • Thanks for the feedback! [200][1989]
      posted by  hackneyed1  on Tue Apr 28 11:27 CST 2009 > V

• '89 245 oxygen sensor reading weirdness [200][1989]
  posted by  Art Benstein  on Fri Apr 24 09:14 CST 2009 > V
  • '89 245 oxygen sensor reading weirdness [200][1989]
    posted by  machine man  on Fri Apr 24 09:57 CST 2009 > V
  • '89 245 oxygen sensor reading weirdness [200][1989]
    posted by  robert240  on Fri Apr 24 09:30 CST 2009 > V
    • '89 245 oxygen sensor reading weirdness [200][1989]
      posted by  hackneyed1  on Fri Apr 24 10:08 CST 2009 > V
      • '89 245 oxygen sensor reading weirdness [200][1989]
        posted by  robert240  on Fri Apr 24 10:58 CST 2009 > V
        • '89 245 oxygen sensor reading weirdness [200][1989]
          posted by  hackneyed1  on Fri Apr 24 11:13 CST 2009 > V
          • '89 245 oxygen sensor reading weirdness [200][1989]
            posted by  robert240  on Fri Apr 24 11:59 CST 2009 > V

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