The OBD code P0170 for Mitsubishi indicates a fuel trim malfunction in Bank 1. This affects the fuel system.
Symptoms include the Engine Light ON, increased fuel consumption.
Causes may include intake air leaks, faulty oxygen sensor, ignition misfiring.
It’s a moderate issue.
To fix, inspect wiring harness, connectors, and components for damage or corrosion.
Check for broken, bent, or pushed out connector pins.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
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Symptoms of the Mitsubishi p0170 OBD Code
The vehicle may experience a lean fuel condition due to Mitsubishi P0170 fault code.
- With Mitsubishi OBD code P0170, the Engine Light will be ON.
- Excessive Fuel Consumption may be noticed.
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Causes of the Mitsubishi p0170 OBD Code
Possible reasons for Mitsubishi fault code P0170 include issues with the fuel system or oxygen sensor.
- P0170 can be caused by intake air leaks.
- Faulty front heated oxygen sensor.
- Ignition misfiring.
- Faulty fuel injectors.
- Exhaust gas leaks.
- Incorrect fuel pressure.
- Lack of fuel.
- Faulty Mass Air Flow (MAF) sensor.
- Incorrect Positive Crankcase Ventilation (PCV) hose connection.
Fixing Mitsubishi Error Code p0170 Step By Step
Address the issue by inspecting for vacuum leaks or a faulty mass airflow sensor.
- To fix Mitsubishi OBDII code P0170, start by reviewing the possible causes mentioned above.
- Visually examine the corresponding wiring harness and connectors for any damage.
- Inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- Check the intake system for vacuum leaks or unmetered air entering the engine.
- Clean or replace the Mass Air Flow (MAF) sensor if contaminated.
- Inspect the fuel pressure and fuel injectors for proper operation.
- Reset the Engine Control Module (ECM) to clear the code and see if it returns.
- If the issue persists, consider replacing the faulty Oxygen (O2) sensor.
Cost Of Fixing Mitsubishi p0170 Fault Code
Diagnosing and repairing Mitsubishi P0170 involves checking for vacuum leaks and testing the fuel system.
The cost to diagnose and fix a Mitsubishi OBD code P0170 typically ranges from $75 to $150 for labor rates per hour.
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 p0170 OBD Code
Mitsubishi P0170 indicates a fuel trim malfunction in Bank 1.
Code P0170 for Mitsubishi vehicles indicates a fuel trim malfunction in Bank 1. This means that the Engine Control Module (ECM) has detected that the fuel mixture is too lean or too rich on Bank 1 of the engine.
The ECM monitors the oxygen sensor signals to adjust the fuel mixture for optimal combustion.
If the ECM detects that the fuel trim is outside of the specified range, it will trigger code P0170. This code is related to the airfuel ratio and can be caused by issues such as a vacuum leak, faulty oxygen sensor, fuel pressure regulator problems, or a clogged fuel filter.
Mechanic’s Tech Notes
Detailed information on Mitsubishi fault code P0170, including possible causes and diagnostic procedures.
To diagnose and fix OBDII code P0170 in a Mitsubishi, start by checking the fuel pressure with a gauge to ensure it meets specifications.
Inspect the intake system for leaks that could cause a lean condition.
Use a scan tool to monitor the longterm fuel trim values to determine if the engine is running lean.
Check the oxygen sensor readings to see if they are within the normal range.
If all these checks are okay, consider cleaning the mass airflow sensor or replacing it if necessary.
Remember to clear the code after any repairs are made to see if it returns.
FAQ
Common causes of OBD code P0170 in a Mitsubishi: intake air leaks, faulty front heated oxygen sensor, ignition misfiring, faulty fuel injectors, exhaust gas leaks.
Diagnose P0170 in Mitsubishi: Check for intake leaks, faulty O2 sensor, misfires, faulty injectors, exhaust leaks, fuel pressure, MAF sensor, PCV connection. Inspect wiring/connectors for damage.
Driving with a P0170 fault code in your Mitsubishi may cause further engine damage due to incorrect fuel mixture. Check for intake leaks, faulty sensors, and ignition issues.
Wrap Up
If your Mitsubishi is displaying OBD code P0170, you may experience rough idling, decreased fuel efficiency, or a noticeable fuel smell.
This code typically indicates a fuel trim malfunction caused by a vacuum leak, faulty oxygen sensor, or a clogged fuel filter.
To address Mitsubishi OBD code P0170, start by checking for vacuum leaks in the intake system, testing the oxygen sensor’s performance, and inspecting the fuel filter for any blockages.
Ensure the wiring harness connections to these components are secure and free of damage.
