Mitsubishi Montero P0440: Meaning, Causes, How to Fix

The P0440 code is a common trouble code that many Mitsubishi Montero owners may encounter. It indicates that there is an issue with the vehicle’s Evaporative Emission Control (EVAP) system. Specifically, the EVAP system is malfunctioning. A variety of causes can trigger the P0440 code, with the most common one being a loose or damaged … Read more

Mitsubishi Montero P0403:EGR→ Circuit Malfunction

P0403 is a very common trouble code. It is a generic code, which means that it has the same meaning for the Mitsubishi Montero as it would any other vehicle. It affects the EGR (Exhaust Gas Recirculation System and technically means: P0403: EGR→ Circuit Malfunction A circuit malfunction implies that there is a wiring problem … Read more

Mitsubishi Montero P0171: Causes, Diagnosis, + How to Fix

One of the most common trouble codes with the Mitsubishi Montero is P0171. It indicates that your Mitsubishi Montero is running lean on the bank one side.  It’s the most common air/fuel mixture-related code. It’s not the most complicated OBDII trouble code to diagnose. It is also one of the most common codes. The most … Read more

Mitsubishi Montero P0305: Misfire Detected (Cylinder 5)

P0305 is a fairly common trouble code with the Mitsubishi Montero. It’s and OBD2 code and stands for: P0305 is certainly a cause for concern, and should be considered a threat to the drivability your Montero. The nice thing about P0305 is that it’s a cylinder specific trouble code, which makes diagnosing the problems simpler … Read more

Mitsubishi Montero P0441: Meaning, Causes, How to Fix

P0441 is one of the more common OBD II codes that can occur in the Mitsubishi Montero.  It is frequently caused by a loose or bad gas cap, cracked or disconnected EVAP system hoses, vacuum leaks, or a bad purge valve. Always start by taking a look at the gas cap. P0441 is related to … Read more

P0303 Mitsubishi Montero: Cylinder 3 Misfire Diagnosis

If your Mitsubishi Montero has the P0303 trouble code, you should know that it’s about as common of a code as there is. It’s a generic code (same meaning for all vehicles) that indicates that your vehicle’s third cylinder is misfiring. P0303 is a real drivability concern and should be dealt with right away. If … Read more