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Internet Message Format  |  1992-10-13  |  940 b 
  1. From: spidell@hpcc01.corp.hp.com (Bob Spidell)
  2. Date: Thu, 8 Oct 1992 16:25:39 GMT
  3. Subject: Re: oxygen sensor
  4. Message-ID: <39670089@hpcc01.corp.hp.com>
  5. Organization: the HP Corporate notes server
  6. Path: sparky!uunet!pmafire!mica.inel.gov!ux1!news.byu.edu!gatech!swrinde!sdd.hp.com!scd.hp.com!hplextra!hpcc05!hpcc01!spidell
  7. Newsgroups: rec.autos.tech
  8. References: <1aqrk1INNads@usenet.INS.CWRU.Edu>
  9. Lines: 17
  10.  
  11. WRT:
  12.  
  13. > What causes them to go bad?  Gunk buildup on the sensor?  Slow
  14. >poisoning from contaminants?  Erosion?
  15. >
  16. From the August, 1992 _Popular Mechanics_ section on auto care:
  17.  
  18. "A common cause of sensor failure is poisoning-the most likely
  19. candidates being lead, carbon and silicon.  When one of these elements
  20. coats the ceramic, it no longer gets oxygen and the sensor either
  21. fails completely or gives erroneous readings.  Excessive oil 
  22. consumption can also cause failure as the burned oil deposits plug
  23. the sensor."
  24.  
  25. regards,
  26. bs
  27.  
  28.