P0147
Powertrain Codes
P0147 - FORD - O2 Sensor Heater Circuit Malfunction 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
When Detected
During testing the oxygen sensor (HO2S) heaters are checked for open and short circuits and exessive current draw
Description
The powertrain control module uses the oxygen sensor to calculate the air/fuel ratio in the exhaust.