Diesel Data
: Automotive Repair
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Fusion AWD L4-2.3L
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A L L Diagnostic Trouble Codes ( DTC )
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Testing and Inspection
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P Code Charts
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P0139
P0139
Note:
Refer to the applicable vehicle system to diagnose the body and chassis DTCs.
P0139 - O2 Circuit Slow Response (Bank 1, Sensor 2):
