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2014 AUDI A6

3.0L Supercharged V6•AWD•AUTOMATIC•gas•supercharged
4 active safety recalls on this vehicle — view recalls
Repairs0Labor991Torque6374Fluid15DTC1816Battery0Maintenance0Recalls4
P0152moderate severityPowertrain

O2 Sensor Circuit High Voltage Bank 2 Sensor 1

on 2014 Audi A6 3.0L Supercharged V6 · AWD

What this code means

The upstream O2 sensor voltage on Bank 2 is staying high.

Symptoms

  • Check Engine Light
  • Rich running Bank 2
  • Black smoke

Common causes

  • Faulty sensor
  • Leaking injector Bank 2
  • High fuel pressure

Diagnostic steps

  1. Monitor sensor voltage
  2. Check injectors
  3. Test fuel pressure

Repair notes

Replace sensor or fix rich condition.

Other Powertrain codes on this vehicle

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