P013B Code – Oxygen Sensor Slow Response Lean to Rich Bank 1 Sensor 2
Code P013B Possible Causes
Heated Oxygen Bank 1 Sensor 2 circuit poor electrical connection
Heated Oxygen Bank 1 Sensor 2 harness is open or shorted
Low or high fuel system pressure
Engine vacuum leaks
Exhaust gas leaks
Faulty fuel injectors
Faulty Heated Oxygen Bank 2 Sensor 2
Fuel contamination
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