Mazda Tribute 2001-06

2.0L L4 - Std 8

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Trouble Code: P2272



Rear HO2S signal stuck lean

Possible Causes:



Front or Rear HO2S malfunction
 
Front or Rear HO2S heater malfunction* Fuel pressure malfunction
 
Fuel injector malfunction
 
PCM has failed
 

Trouble Code: P2273



Rear HO2S signal stuck rich

Possible Causes:



Front or Rear HO2S malfunction
 
Front or Rear HO2S heater malfunction* Fuel pressure malfunction
 
Fuel injector malfunction
 
PCM has failed
 

 
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