Engine Code P2245? O2 Sensor 1/1

Skid_Kid said:

I would return back to stock and see if you get a check eng light. If not then install your superchips again and see if it comes back.


Sent from my PRC-119

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MurderedJK said:

Smart man! I returned it back to stock and within 5 mins of driving I threw a code. Now I just have to wait until Friday to take it into the dealership. Thanks!

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MurderedJK said:

Here is my next question... Is it normal for O2 sensors to go bad so soon? I just rolled 30K, or would my tuner be a factor..?

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Skid_Kid said:

It is a wear part really. Heat is the biggest factor. So if your tuner is causing your eng to run a bit hotter then it could have been the cause. Always make sure you are changing your oil on time and use good gas. The use of proper fuel will have less blowby gathering on your 02 sensor.

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MurderedJK said:

I have an Aeroforce multi gauge and I have not noticed any increase in temps (trans/engine)... I use Shell fuel and I change my oil every 4k. I'll get the dealer to replace the sensor and hope this doesn't happen again otherwise I would assume its the tuner (I hope not, I love the added power). Thanks for your help Skid_Kid!

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MurderedJK said:

I have a 2011 JKU and just recently got a superchips tuner. Well I have since gotten a P2245 DTC which is "O2 Sensor 1/1 Reference Voltage Circuit Low." I have searched and searched for which O2 sensor this may be but, no luck. If I return my rig back to stock mode, the DTC will be cleared and the dealership wont do anything. If I leave the tuning to keep the code, the dealership may have an issue that I have a superchips tuner installed... I do most of the repairs myself, but I have not been able to figure out which sensor is throwing this code...

Please help guys.

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