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1998 AUDI A3

1.6L I4FWDAUTOMATICgas
Repairs0Labor472Torque2472Fluid6DTC645Battery0Maintenance0Recalls0
P0159low severityPowertrain

O2 Sensor Circuit Slow Response Bank 2 Sensor 2

on 1998 Audi A3 1.6L I4 · FWD

What this code means

Slow response from the downstream O2 sensor on Bank 2.

Symptoms

  • Check Engine Light
  • Failed emissions

Common causes

  • Aging sensor
  • Contaminated sensor

Diagnostic steps

  1. Monitor response
  2. Test sensor

Repair notes

Replace sensor.

Other Powertrain codes on this vehicle

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