Symptoms of P0153 OBD II Trouble Code
- The oxygen sensor is faulty
- The wiring to the sensor is broken / frayed
- There is an exhaust leak
Common Causes of P0153 OBD II Trouble Code
- Check and fix any exhaust leaks
- Check for wiring problems (shorted, frayed wires)
- Check the frequency and amplitude of the oxygen sensor (advanced)
- Check for a deteriorating / contaminated oxygen sensor, replace if necessary
- Check for inlet air leaks
- Check the MAF sensor for proper operation
- Replace the Bank 2 oxygen sensor upstream of the catalytic converter