2019 Mitsubishi Mirage G4 Has A Check Engine Light

Resolve Check Engine Light Issues in 2019 Mitsubishi Mirage G4

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Reviewed by
Aisha
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 2019 Mitsubishi Mirage G4 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 2019 Mitsubishi Mirage G4 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 2019 Mitsubishi Mirage G4?

When the check engine light illuminates on your 2019 Mitsubishi Mirage G4, the first step is to check the gas cap, as a loose or damaged cap is a common and easily fixable issue that can trigger the light. Next, take a moment to observe the dashboard gauges for any unusual readings, which may indicate other underlying problems. After that, inspect the engine bay for any visible damage to wires, hoses, or connectors, as physical issues can often lead to warning lights. If these initial checks do not resolve the issue, using an OBD-II scanner is a crucial step; it allows you to retrieve specific error codes that can pinpoint the problem. Be sure to consult your owner’s manual for detailed information on what these codes mean and the recommended actions. If the cause remains unclear or if the situation appears complex, it’s wise to seek help from a qualified mechanic or dealership to ensure proper diagnosis and repair. By following this structured approach, you can effectively troubleshoot the check engine light and take informed steps toward resolving the issue.

What are the common problems that could cause the check engine light to illuminate in a 2019 Mitsubishi Mirage G4?

When the check engine light illuminates in a 2019 Mitsubishi Mirage G4, it serves as a crucial alert for drivers to investigate potential issues that could affect vehicle performance. Common problems include a loose gas cap, which is an easy fix that can often be resolved by simply tightening or replacing it. More complex issues may involve the oxygen sensor, which plays a vital role in monitoring exhaust gases; a malfunction here can lead to reduced fuel efficiency and increased emissions. Additionally, the catalytic converter may experience clogging or inefficiency, impacting overall engine performance. Other potential triggers for the check engine light include worn spark plugs and faulty ignition coils, both of which can cause engine misfires. The mass airflow sensor, responsible for gauging the air entering the engine, can also fail, leading to subpar engine performance. Addressing these common problems promptly is essential to prevent further damage and ensure your vehicle operates efficiently. While some issues may be suitable for DIY repairs, others might necessitate professional diagnostics for a comprehensive solution.

How urgent is it to address the check engine light in a 2019 Mitsubishi Mirage G4?

When the check engine light illuminates in your 2019 Mitsubishi Mirage G4, it is essential to recognize the urgency of the situation. This warning light is not merely a nuisance; it signals potential issues within your vehicle's engine or emissions system that could escalate if left unaddressed. While some triggers, like a loose gas cap, may seem trivial, others could indicate serious mechanical failures that could compromise your vehicle's performance and safety. Ignoring the check engine light can lead to decreased fuel efficiency, increased emissions, and even severe engine damage, which can be costly to repair. For DIY enthusiasts, the first step is to use an OBD-II scanner to retrieve diagnostic trouble codes, which can provide insight into the specific issue at hand. However, if the codes indicate a more complex problem, it is advisable to consult a professional mechanic to ensure that any underlying issues are properly diagnosed and resolved. Taking prompt action not only helps maintain your vehicle's health but also enhances your driving experience and safety on the road.

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