O2 Sensor Out of Range During Deceleration Bank 2 Sensor 1

Where it lives

For P2298, start at the sensor the description names. The description of P2298 puts it on bank 2.

Check these first

• A lazy or contaminated upstream oxygen sensor on bank 2
• A bank 2 injector dripping fuel during deceleration
• An exhaust leak ahead of bank 2 sensor 1
• A vacuum leak on the bank 2 intake that skews the mixture
• A biased upstream oxygen sensor that never swings lean

What to do next

1. Watch bank 2 sensor 1 during a deceleration event
2. Check for exhaust leaks ahead of bank 2 sensor 1
3. Balance the bank 2 injectors and check for a dripping injector
4. Smoke test the bank 2 intake for vacuum leaks
5. Replace bank 2 sensor 1 if it will not swing lean on decel
6. Clear the code and retest

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