The OBD code P0157 for Mitsubishi indicates an issue with the Rear Heated Oxygen Sensor Bank 2. Symptoms include the Engine Light ON, high fuel consumption, and excessive exhaust smoke.
Causes may include a faulty sensor, wiring harness issues, fuel pressure problems, or intake/exhaust leaks.
This code should be addressed promptly to prevent further damage.
A possible fix involves inspecting and repairing the sensor, wiring, and related components.
| Repair Importance Level | 6.67 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 6.67 (Out of 10) |
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Symptoms of the Mitsubishi p0157 OBD Code
The specific fault code P0157 in a Mitsubishi indicates an issue with the oxygen sensor circuit low voltage.
- Symptoms for OBD code P0157 in a Mitsubishi include: Engine Light ON.
- High Fuel Consumption.
- Excessive Smoke from Exhaust.
Causes of the Mitsubishi p0157 OBD Code
P0157 in a Mitsubishi indicates a fault in the oxygen sensor circuit for Bank 2 Sensor 2.
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- P0157 can be caused by a Faulty Rear Heated Oxygen Sensor Bank 2.
- A Rear Heated Oxygen Sensor Bank 2 harness that is open or shorted.
- A Rear Heated Oxygen Sensor Bank 2 circuit with poor electrical connection.
- Inappropriate fuel pressure.
- Faulty fuel injectors.
- Intake air leaks that may be faulty.
- Exhaust gas leaks.
Fixing Mitsubishi Error Code p0157 Step By Step
Replace faulty Bank 2 Sensor 2 oxygen sensor on a Mitsubishi to address P0157 code.
- To fix the Mitsubishi OBDII code P0157, start by reviewing the possible causes related to the oxygen sensor circuit low voltage.
- Visually inspect the wiring harness and connectors for any damage or corrosion.
- Check the connector pins for any signs of being broken, bent, or pushed out.
- Replace the oxygen sensor if necessary.
- Clear the fault codes and perform a test drive to verify the repair.
Cost Of Fixing Mitsubishi p0157 Fault Code
Diagnosing and repairing fault code P0157 on a Mitsubishi involves testing and potentially replacing the oxygen sensor.
The cost to diagnose and fix a Mitsubishi OBD code P0157 typically ranges from $75 to $150 per hour for labor rates.
With an estimated repair time of 1. 0 hour, the total cost can be around $75 to $150, depending on shop rates and the complexity of the issue.
Details of the Mitsubishi p0157 OBD Code
Mitsubishi P0157 indicates a low voltage condition in the bank 2, sensor 2 oxygen sensor.
Code P0157 for Mitsubishi vehicles indicates a low voltage condition in the Bank 2, Sensor 2 oxygen sensor circuit.
This sensor is located after the catalytic converter.
The Engine Control Module (ECM) triggers this code when it detects that the voltage signal from the Bank 2, Sensor 2 oxygen sensor remains below a specified range for an extended period of time.
This sensor is responsible for monitoring the efficiency of the catalytic converter and helps the ECM adjust the airfuel mixture for optimal emissions control.
Mechanic’s Tech Notes
Detailed information on Mitsubishi fault code P0157, including symptoms, causes, and solutions for efficient troubleshooting.
OBDII code P0157 in a Mitsubishi indicates a fault with the Bank 2 Sensor 2 oxygen sensor circuit low voltage.
To diagnose, use a voltmeter to test the sensor’s wiring for proper voltage supply and ground.
Check the sensor’s connector for any damage or corrosion.
Scan tools can help monitor sensor data and confirm proper sensor operation.
If no issues are found with the wiring or sensor, the problem may lie with the sensor itself needing replacement.
Ensure the new sensor meets OEM specifications.
FAQ
OBD code P0157 in a Mitsubishi means an issue with the Rear Heated Oxygen Sensor Bank 2. Check sensor, wiring, fuel system, and intake/exhaust for faults.
Common causes of OBD code P0157 in a Mitsubishi include a faulty rear heated oxygen sensor Bank 2, open/shorted sensor harness, poor electrical connection, or fuel system issues.
Diagnose P0157 in Mitsubishi: Check rear O2 sensor Bank 2, wiring, connectors. Look for damage, corrosion. Repair as needed. Clear codes, test drive to verify fix.
Wrap Up
If your Mitsubishi is displaying OBD code P0157, you may experience poor fuel economy, rough idling, or a decrease in engine performance.
This code typically indicates a fault in the oxygen sensor circuit for Bank 2 Sensor 2, caused by a faulty oxygen sensor, damaged wiring, or a poor electrical connection.
To address Mitsubishi OBD code P0157, start by inspecting the wiring harness and connectors related to Bank 2 Sensor 2. Test the oxygen sensor’s functionality using a multimeter and replace it if necessary.
Ensure all connections are secure and free of corrosion to resolve
