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I keep getting a 0031 trouble code. I seem to have lost my book so I nether know the cause of the code or what the code is. Any help would be greatly appreiciated.
 

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No temp fix that I know of. It just causes your car to run rich all the time if your running stock ecu. Cheapest place to order the part IMO is subarugenuineparts.com. OEM P/N is 22641AA042.
 

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I am now getting the same problem with my car, but the trouble coming up is just telling the car is rich not that the o2 sensor is bad.
 

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I am now getting the same problem with my car, but the trouble coming up is just telling the car is rich not that the o2 sensor is bad.
are u getting the code too or no? if a cylinder is just running rich all the time no matter what it could be something as simple as a leaky injector
 
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