Mitsubishi has a list of fault codes that are used to diagnose problems with their vehicles. These codes are set when certain sensors or components in the vehicle detect a problem. The codes can be read from the diagnostic port on the vehicle, which is usually located under the dash. When a code is set, it will usually trigger a check engine light on the dash. The code can then be looked up in the list to determine what the problem is. In some cases, the code may not be listed in the Mitsubishi fault code list. In this case, it is recommended that the vehicle be taken to a dealer or a qualified technician for further diagnosis.
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1. Check for loose connections
- Turn off all electrical accessories in the car.
- Remove any visible obstructions, such as seats and mats, in the area around the battery.
- Disable the car’s security system by pressing and holding the unlock button for three seconds.
- Open the car’s hood.
- Locate the battery and disconnect the cables.
- Verify that all connections between the battery and the car’s electrical system are secure.
- Replace the battery if necessary.
- Reconnect the cables and reenable the security system.
- Drive the car and check for problems.
2. Check for damaged wiring
- Check the fuses and circuit breakers for any open or short circuits.
- Check the wiring for any broken, frayed or exposed wires.
- Repair or replace any damaged wiring as necessary.
- Reset the Mitsubishi fault code list.
3. Check for faulty sensors
There are a few different ways to check for faulty sensors in a Mitsubishi vehicle. The most common way to check for a faulty sensor is to use a scan tool. Other ways to check for a faulty sensor include physically checking the sensor itself, and checking the wiring or connectors that connect the sensor to the vehicle.
4. Check for faulty injectors
- Start the car and allow it to idle. If the car stalls, the injectors may be faulty.
- Use a scan tool to check the injectors’ codes. If the codes indicate a problem, take the car to a mechanic for repair.
- If the codes do not indicate a problem, try to run the car without the injectors. If the car still stalls, the injectors may be faulty.
- Replace the injectors if the code indicates a problem.
If the answers above didn't work then you should also try:
- Check for faulty ignition coils.
- Check for faulty spark plugs.
- Check for faulty fuel pumps.
- Check for restricted fuel lines.
- Check for clogged fuel filters.
- Check for clogged air filters.
- Check for intake manifold leaks.
- Check for exhaust leaks.
- Check for engine mechanical problems.