2017 Mitsubishi I-MiEV Has A Check Engine Light

Troubleshooting the Check Engine Light in Your 2017 Mitsubishi i-MiEV: Common Causes and Solutions

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Reviewed by
Andrew Hajjar
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 2017 Mitsubishi i-MiEV 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 2017 Mitsubishi i-MiEV 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.

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 2017 Mitsubishi i-MiEV?

When faced with a check engine light on your 2017 Mitsubishi i-MiEV, it's essential to adopt a systematic diagnostic approach to identify the underlying issue. Start with the simplest solutions, such as checking the gas cap; a loose or damaged cap is a common culprit that can easily trigger the light. Next, inspect your dashboard gauges for any additional warning lights or unusual readings that might provide further insight into the problem. Utilizing an OBD-II scanner is a crucial step, as it allows you to retrieve specific error codes from the vehicle's computer, guiding you toward the exact issue. Additionally, ensure that all essential fluid levels—like oil, coolant, and transmission fluid—are adequate, as low levels can also activate the check engine light. Don’t overlook the importance of examining the wiring and connections under the hood for any signs of damage or corrosion that could affect engine performance. If these initial steps do not resolve the issue, seeking professional assistance from a qualified mechanic is advisable for a comprehensive diagnosis and repair. By following this structured approach, you can effectively troubleshoot the check engine light and potentially save on costly repairs.

What are the common problems that could cause the check engine light to illuminate in a 2017 Mitsubishi i-MiEV?

When the check engine light comes on in a 2017 Mitsubishi i-MiEV, it can be a source of concern for any DIY car owner. One of the most straightforward issues to check is the gas cap; a loose or damaged cap can easily trigger the light, so ensuring it is secure is a good first step. If the gas cap is not the culprit, the oxygen sensor may be at fault, as it plays a crucial role in monitoring the air-fuel mixture and can fail over time. Another common issue is related to the catalytic converter, which can become inefficient or fail, leading to increased emissions and triggering the light. Additionally, worn-out spark plugs can disrupt engine performance, causing the check engine light to illuminate. Problems with the mass airflow sensor, which measures the amount of air entering the engine, can also lead to this warning light. Lastly, faulty ignition coils can prevent the engine from firing properly, resulting in the check engine light being activated. Addressing these issues promptly is essential to maintain the vehicle's performance and prevent further damage, making it wise for DIY enthusiasts to familiarize themselves with these common problems.

How urgent is it to address the check engine light in a 2017 Mitsubishi i-MiEV?

When the check engine light illuminates in your 2017 Mitsubishi i-MiEV, it is essential to recognize the urgency of the situation. This warning light is not just a minor inconvenience; it indicates potential issues within the engine or emissions system that could escalate if left unaddressed. Ignoring this signal can lead to more severe problems, including costly repairs or even a breakdown, which can compromise your safety on the road. 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 issues affecting your vehicle. However, while some minor problems may be resolved at home, it is crucial to understand that certain issues require professional expertise. Therefore, addressing the check engine light promptly not only helps maintain your vehicle's performance but also prevents further damage, ensuring a safer driving experience.

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