2011 Mitsubishi Outlander Has A Check Engine Light

Check Engine Light Issues in 2011 Mitsubishi Outlander: Causes and Solutions

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Reviewed by
Bo Fader
Written by RepairPal Car Genius
Updated January 14, 2025
0%
40% chance it's the
Emissions System
0%
60% chance it's
Something else
The most common reasons a 2011 Mitsubishi Outlander has a check engine light are an emissions system component, a sensor, or a catalytic converter.
  • Emissions System: A faulty emissions system component, such as an oxygen sensor or EGR valve, can lead to increased emissions and trigger the check engine light.
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 2011 Mitsubishi Outlander has a check engine light?

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.

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.

Due to the nature of electrical systems on modern vehicles, the range of problems these can cause are nearly limitless. However, there is a way to categorize them in two ways. Permanent and intermittent problems. Permanent problems appear and remain. This may be the vehicle will not start, the radio does not work, or the door chime will not turn off among many, many others. These problems are more straight-forward to diagnose since they present themselves at all time. This means there will always be a fault to find. Intermittent electrical problems, however, can be difficult or impossible to locate, since they appear then disappear without warning. The best case scenario for an intermittent issue is when replicating the problem is easily accomplished and understood. This allows a technician to make an issue semi-permanent, allowing them to find the fault. Other issues that come and go without warning and cannot be replicated on demand must occur when the technician is servicing the vehicle, otherwise there is no problem to correct. It is most important to understand that electrical system faults always require inspection, and can include the vehicle working in any manner, or not working at all.

Like we noted in the last section, general diagnosis symptoms are the most vague of the bunch. There are several diagnostic spectrums, electrical diagnosis, drivability diagnostics, engine diagnostics, transmission diagnostics, and the list could continue for about 5 or 10 more spectrums of diagnostics. The most important take-away here, is that general diagnostics are diagnostics that have no other spectrum in which they fit, or the problem is unknown. This means that any vehicle left outside of a repair facility with the keys and an authorization to perform diagnosis will be diagnosed under the general diagnosis spectrum.

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 check engine light on a 2011 Mitsubishi Outlander?

When faced with a check engine light on your 2011 Mitsubishi Outlander, it's essential to approach the diagnosis methodically. Start by checking the gas cap; a loose or damaged cap is a common culprit that can easily trigger the light. Next, take a moment to inspect your dashboard gauges for any additional warning lights or unusual readings, as these can offer further insights into the problem. Utilizing an OBD-II scanner is a crucial step, as it allows you to retrieve specific error codes that can help pinpoint the issue more accurately. After that, examine the condition of your spark plugs, since worn or faulty plugs can also cause the light to illuminate. Don’t forget to check your battery; ensure the terminals are clean and securely connected, as a weak battery can sometimes lead to this warning. Finally, verify that all essential fluid levels—such as oil, coolant, and transmission fluid—are adequate, as low levels can contribute to engine problems. By following these steps, you can effectively gather information to diagnose the cause of the check engine light and take appropriate action.

What are the common causes of a check engine light in a 2011 Mitsubishi Outlander?

When diagnosing the common causes of a check engine light in a 2011 Mitsubishi Outlander, it's essential to understand the various issues that can trigger this warning. One of the most frequent culprits is a loose gas cap, which can disrupt the vehicle's evaporative emissions system, leading to the light's activation. Another common issue is a faulty oxygen sensor; this component plays a critical role in monitoring exhaust gases and, if malfunctioning, can negatively impact fuel efficiency and emissions. Additionally, problems with the catalytic converter can also illuminate the check engine light, as a failing converter affects both emissions and overall vehicle performance. The mass airflow sensor is another key player; if it fails, it can disrupt the engine's air-fuel mixture, leading to performance issues. Furthermore, issues with spark plugs or ignition coils can cause misfires, which are often indicated by the check engine light. Lastly, an engine misfire itself, stemming from various factors like ignition system failures or fuel delivery problems, can trigger this warning. If your check engine light comes on, it's advisable to conduct a thorough inspection or consult a qualified mechanic to accurately diagnose and resolve the underlying issue.

How urgent is it to address the check engine light in a 2011 Mitsubishi Outlander?

Addressing the check engine light in a 2011 Mitsubishi Outlander is crucial for maintaining the vehicle's performance and safety. This warning indicator is not just a minor inconvenience; it signals potential issues within the engine or emissions system that could escalate into more severe problems if ignored. For DIY enthusiasts, understanding the urgency of this warning is essential. Neglecting the check engine light can lead to costly repairs, as minor issues like a faulty oxygen sensor or a loose gas cap can develop into significant engine damage over time. Additionally, driving with the check engine light illuminated may result in decreased fuel efficiency and increased emissions, which not only affects your wallet but also poses environmental concerns. By promptly diagnosing and addressing the underlying issues indicated by the check engine light, you can ensure your Mitsubishi Outlander remains in optimal condition, ultimately saving time and money while enhancing your driving experience.

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