O2 Sensor Delayed Response - Rich to Lean Bank 2 Sensor 2

Where it lives

For P014A, the description names the sensor as the part involved. The description of P014A puts it on bank 2.

Check these first

• A delayed downstream oxygen sensor on bank 2
• A contaminated oxygen sensor element
• An exhaust leak upstream of sensor 2
• Resistance in the bank 2 sensor 2 wiring
• A rich condition from leaking injectors on bank 2

What to do next

1. Watch the rich to lean response time on bank 2 sensor 2
2. Check for exhaust leaks upstream of sensor 2
3. Inspect the bank 2 sensor 2 wiring
4. Replace bank 2 sensor 2
5. Check for leaking injectors on bank 2
6. Clear the code and retest

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