P0147
Powertrain Codes
P0147 - VOLKSWAGEN - O2 Sensor Heater Circuit Bank 1 Sensor 3
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- High Fuel Consumption
- Excessive Smoke from Exhaust
Possible Causes
- Heated Oxygen Sensor Bank 1 Sensor 3 harness is open or shorted
- Heated Oxygen Sensor Bank 1 Sensor 3 circuit poor electrical connection
- Faulty Heated Oxygen Sensor Bank 1 Sensor 3
Description
The powertrain control module uses the oxygen sensor to calculate the air/fuel ratio in the exhaust.