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

Where it lives

For P013C, start at the sensor the description names. The description of P013C puts it on bank 2.

Check these first

• An aged downstream oxygen sensor on bank 2
• A contaminated downstream oxygen sensor on bank 2
• An exhaust leak near sensor 2 on bank 2
• Resistance in the bank 2 sensor 2 wiring
• A fuel pressure skew on bank 2

What to do next

1. Measure the rich to lean switch time on bank 2 sensor 2
2. Check for exhaust leaks near sensor 2
3. Inspect the bank 2 sensor 2 wiring and connector
4. Replace bank 2 sensor 2
5. Check fuel pressure on bank 2
6. Clear the code and retest

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