Volvo RWD 200 Forum

INDEX FOR 6/2013(CURRENT) INDEX FOR 4/2012 200 INDEX INDEX (NO RELOAD) [<<] [>>]

VIEW

REPLY TO THIS MESSAGE

SAVE

No Oxygen Sensor signal at ECU, 89 240 200

posted by LoveMy240Wagon on Sat Mar 31 20:50 CST 2012
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS]

[IGNORE ALL POSTS]

last visit: Mon Mar 25 06:12 CST 2013

[RELATED]

Thanks for confirming that.

Now I've noticed that I can pull the #4 fuse and nothing changes in the way it is running.

So I followed the yellow/red (+) wire from the O2 sensor back to the fuse block. It turns out there is a short in the wire somewhere behind the dash.

What is odd is that #4 fuse has 14 volts when running AND has continuity to ground. Why isn't something smoking? Why isn't the fuse blowing?

I disconnected the O2 sensor wire (yellow/red) from the #4 fuse block and also pulled the wires apart at the O2 sensor. This eliminated the short.

Then I directly connected the O2 sensor to a known good voltage supply and measured the voltage across the sensor to be sure. So the pre-heater is working and the short is removed from #4 fuse block.

Still runs exactly the same.

THREADED

THREADED EXPANDED

FLAT

PRINT ALL

MESSAGES IN THIS THREAD

No Oxygen Sensor signal at ECU, 89 240 [200]
posted by LoveMy240Wagon on Sat Mar 31 10:38 CST 2012 >

No Oxygen Sensor signal at ECU, 89 240 [200]
posted by lucid on Sat Mar 31 12:01 CST 2012 > V
- No Oxygen Sensor signal at ECU, 89 240 [200]
  posted by LoveMy240Wagon on Sat Mar 31 15:56 CST 2012 > V

No Oxygen Sensor signal at ECU, 89 240 [200]
posted by LoveMy240Wagon on Sat Mar 31 12:02 CST 2012 > V
- No Oxygen Sensor signal at ECU, 89 240 [200]
  posted by lucid on Sat Mar 31 18:14 CST 2012 > V
  - No Oxygen Sensor signal at ECU, 89 240 [200]
    posted by LoveMy240Wagon on Sat Mar 31 20:50 CST 2012 > V
    - No Oxygen Sensor signal at ECU, 89 240 [200][1989]
      posted by lucid on Sun Apr 1 06:16 CST 2012 > V
      - No Oxygen Sensor signal at ECU, 89 240 [200][1989]
        posted by LoveMy240Wagon on Sun Apr 1 08:58 CST 2012 > V
        
        No Oxygen Sensor signal at ECU, 89 240 [200][1989]
        posted by LoveMy240Wagon on Sun Apr 1 10:14 CST 2012 > V
        
        No Oxygen Sensor signal at ECU, 89 240 [200][1989]
        posted by LoveMy240Wagon on Sun Apr 1 10:58 CST 2012 > V
        
        No Oxygen Sensor signal at ECU, 89 240 [200][1989]
        posted by 740_dan on Sun Apr 1 12:25 CST 2012 > V
        
        No Oxygen Sensor signal at ECU, 89 240 [200][1989]
        posted by pageda on Sun Apr 1 12:38 CST 2012 > V
        
        No Oxygen Sensor signal at ECU, 89 240 [200][1989]
        posted by LoveMy240Wagon on Sun Apr 1 13:58 CST 2012 > V
        
        No Oxygen Sensor signal at ECU, 89 240 [200][1989]
        posted by pageda on Sun Apr 1 14:11 CST 2012 > V
        
        No Oxygen Sensor signal at ECU, 89 240 [200][1989]
        posted by LoveMy240Wagon on Sun Apr 1 14:25 CST 2012 > V
        
        No Oxygen Sensor signal at ECU, 89 240 [200][1989]
        posted by pageda on Sun Apr 1 14:36 CST 2012 > V
        
        No Oxygen Sensor signal at ECU, 89 240 [200][1989]
        posted by LoveMy240Wagon on Sun Apr 1 14:41 CST 2012 > V
        
        No Oxygen Sensor signal at ECU, 89 240 [200][1989]
        posted by someone claiming to be CB on Sun Apr 1 15:16 CST 2012 > V
        
        No Oxygen Sensor signal at ECU, 89 240 [200][1989]
        posted by LoveMy240Wagon on Sun Apr 1 19:33 CST 2012 > V
        
        No Oxygen Sensor signal at ECU, 89 240 [200][1989]
        posted by LoveMy240Wagon on Mon Apr 2 06:21 CST 2012 > V

Bentley Errata File [200]
posted by lucid on Sat Mar 31 18:17 CST 2012 > V
- Bentley Errata File [200]
  posted by LoveMy240Wagon on Sat Mar 31 20:44 CST 2012 > V
  - Bentley Errata File &#091Note that some/many errors were fixed in update&#093 [200]
    posted by lucid on Sun Apr 1 07:42 CST 2012 > V

No Oxygen Sensor signal at ECU, 89 240 [200]
posted by LoveMy240Wagon on Mon Apr 16 08:32 CST 2012 > V
- No Oxygen Sensor signal at ECU, 89 240 [200]
  posted by pageda on Mon Apr 16 14:31 CST 2012 > V
  - No Oxygen Sensor signal at ECU, 89 240 [200]
    posted by LoveMy240Wagon on Mon Apr 16 16:20 CST 2012 > V

[about brickboard ads]

Cut and paste link:

<< < > >>

Users marked in green are currently online.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.