2023 Mitsubishi Outlander PHEV Engine Is Stalling

Common Causes of Engine Stalling in Your 2023 Mitsubishi Outlander PHEV and How to Resolve Them

Find Repair Location
Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Fuel System
0%
15% chance it's the
Air Intake System
0%
55% chance it's
Something else
The most common reasons a 2023 Mitsubishi Outlander PHEV engine is stalling are the fuel system, the air intake system, or the ignition system.
  • Fuel System: A clogged fuel filter or failing fuel pump can restrict fuel flow, resulting in poor engine performance and starting issues.
  • Air Intake System: A dirty or damaged air filter or a malfunctioning mass airflow sensor can restrict airflow, leading to reduced engine performance and efficiency.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2023 Mitsubishi Outlander PHEV engine is stalling?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

If the MAF sensor sends an erroneous signal, a few things happen. The engine's computer will trigger the check engine light, and the on-board diagnostic (OBD) trouble codes will reflect the airflow discrepancy noted by the MAF sensor. Depending on the reported volume of air, the engine may try to compensate for these conditions, causing the engine to burn excessive amounts of fuel and emit black smoke from the exhaust. In this case, the OBD trouble codes would also reference faults recognized by the exhaust oxygen sensors. The engine may also have issues with idling roughly, failing to start, stalling, hesitation, power loss, misfires, and fuel consumption.

»MORE: Signs of a failing mass airflow sensor

A faulty oxygen sensor is one of the most common causes of a check engine light. Symptoms may include a decrease in fuel mileage, hesitation or misfiring from the engine, rough idling or even stalling. A faulty sensor may cause the vehicle to fail an emissions test.

Any time there is an emissions fault the check engine light will be displayed. The purpose of the check engine light is to inform the driver that an emission related fault has been found, and that there are on-board diagnostic (OBD) trouble codes stored in the powertrain or engine control module. Additionally, since the emissions systems are so intertwined into engine control and transmission control systems, symptoms may include nearly any sort of drivability concerns. This may include harsh shifting, failure to shift, hesitation on acceleration, jerking, engine failure to start or run, loss of power, or any number of other drivability issues.

When the Check Engine Light comes on, you may experience engine performance issues such as poor acceleration, rough idling, or an engine that won't start. In some cases, no abnormal symptoms will be experienced. Other systems like the transmission or ABS can cause the Check Engine Light to illuminate and lights for those systems can come on at the same time. Similar lights may say "Check Engine Soon", "Malfunction Indicator Light" or just "Check". In rare case the engine can overheat.

What are the initial diagnostic steps to take for a 2023 Mitsubishi Outlander PHEV experiencing engine stalling?

When troubleshooting engine stalling in a 2023 Mitsubishi Outlander PHEV, it's essential to adopt a systematic diagnostic approach that prioritizes simpler checks before delving into more complex issues. Start by using an OBD-II scanner to retrieve any error codes from the vehicle's computer, as these codes can offer critical insights into the problem. Next, inspect the hybrid battery to ensure it is charged and functioning correctly, since a weak battery can lead to stalling. Following this, examine the fuel system, including the fuel pump and injectors, to rule out any fuel delivery issues. It's also important to check the ignition system components, such as spark plugs and ignition coils, as faults here can cause misfires. Additionally, assess the charging system to confirm that the alternator and related parts are operating properly, as a malfunction can result in power loss. Finally, inspect for any vacuum leaks that could disrupt the air-fuel mixture. By methodically addressing these areas, you can effectively identify and resolve the stalling issue in your Outlander PHEV.

What are the common problems that could cause the engine to stall in a 2023 Mitsubishi Outlander PHEV?

When diagnosing engine stalling in a 2023 Mitsubishi Outlander PHEV, it's essential to consider several common problems that could be at play. One of the primary culprits is battery issues, particularly with the hybrid or high-voltage battery systems, which can significantly impact engine performance. Additionally, fuel system problems, such as a clogged fuel filter or a malfunctioning fuel pump, can disrupt the fuel supply necessary for smooth engine operation. Ignition system malfunctions, including faulty spark plugs or ignition coils, may also lead to stalling, as these components are crucial for proper engine ignition. Furthermore, malfunctioning sensors, like the mass airflow or throttle position sensors, can send incorrect data to the engine control module, resulting in performance issues. Lastly, problems with the engine control module itself can affect various engine functions, leading to stalling. By understanding these potential issues, DIY enthusiasts can take proactive steps in diagnosing and addressing the root causes of engine stalling, ensuring their Outlander PHEV runs smoothly and reliably. Regular maintenance and timely repairs are key to preventing these problems and avoiding inconvenient breakdowns.

How urgent is it to address the engine stalling issue in a 2023 Mitsubishi Outlander PHEV?

Addressing the engine stalling issue in a 2023 Mitsubishi Outlander PHEV is of utmost urgency due to the significant safety risks it poses. An unexpected stall can lead to dangerous situations on the road, increasing the likelihood of accidents. Moreover, neglecting this problem can result in further damage to critical vehicle components, which may lead to more extensive and costly repairs down the line. By taking immediate action, you not only enhance your safety but also ensure the reliability of your vehicle for daily use, preventing inconvenient breakdowns. Therefore, it is essential to prioritize resolving any stalling issues promptly to maintain both safety and cost-effectiveness in your vehicle's operation.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.