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Old 05-02-2013, 12:07 PM Rookie

Join Date: Feb 2012
Location: Midland, Texas
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Need Diagnostic Trouble Codes

I have a 2012 F-250 with 6.7 and the check engine light came on recently. I pulled the codes and have 2 codes set and 4 codes "pending". They are:

P0131 - O2 Sensor Low Voltage Bank 1 Sensor 1
P4654 - Unknown
P747F - Unknown
P6900 - Unknown
P9A80 - Unknown
P5800 - Unknown

Anyone have the reference to the 5 that are unknown? I have an appointment with the dealer Monday morning but would really like to know what I'm dealing with here to keep them honest. The engine has been strange for a while now with the most noticeable symptom being the fuel injection noise management strategy is inconsistent. Sometimes idle and part throttle engine sounds are quiet and muffled (normal) and other times it rattles like a 7.3. It is always quieter during a DPF cleaning cycle.

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