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o2 sensor heater after the cats

  #1  
Old 03-12-2019, 06:56 PM
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Default o2 sensor heater after the cats

does any body know if the heater on the o2 is turned on by ground or positive. and does the heater circuit use a relay to turn them on.
 

Last edited by gregs80; 03-13-2019 at 03:15 AM.
  #2  
Old 04-11-2019, 03:42 AM
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well i got that code to go away and now I have 2 more codes that came up,what a pain in the ***
 
  #3  
Old 04-11-2019, 05:33 PM
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curious which codes and how did you get the original code to go away... and the wiring for the O2 sensors are generic, you can google for the wire color coding.
 
  #4  
Old 04-15-2019, 12:55 AM
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codes were p0036.p0140.

replaced o2 sensor again.only had 10.000 miles on it maybe

pasted EPA 4 days later 2 new codes for running rich
 
  #5  
Old 04-15-2019, 12:56 AM
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going to see about some hotter plugs
 
  #6  
Old 04-19-2019, 04:56 PM
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or check for air leaks, exhaust leaks
 
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