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Kia
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2016
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Forte LX, Standard Trans
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System Diagnosis - 1.8L (1 Of 3)
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DTC P0139: O2 Sensor Circuit Slow Response (Bank 1/Sensor 2)
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System Inspection
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Exhaust System Inspection
Exhaust System Inspection
Check the exhaust system for an exhaust leak near the engine.
Was an exhaust leak found?
YES
Repair as necessary and go to "
Verification Of Vehicle Repair
" procedure.
NO
Go to next step as below.