2020 Honda Insight Has A Check Engine Light

Resolve Check Engine Light Issues in Your 2020 Honda Insight

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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 2020 Honda Insight 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 2020 Honda Insight 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 steps to diagnose the check engine light on a 2020 Honda Insight?

To effectively diagnose the check engine light on your 2020 Honda Insight, start with a thorough visual inspection of the vehicle. Begin by checking the gas cap; ensure it is securely tightened and free from damage, as a loose or faulty gas cap is a common trigger for the check engine light. Next, utilize an OBD-II scanner to connect to the vehicle's diagnostic port. This tool will help you retrieve specific error codes that can pinpoint the issue at hand. Pay attention to any additional symptoms your vehicle may exhibit, such as strange noises or performance changes, as these can provide further clues. Additionally, consulting your owner's manual can offer insights into what the check engine light may signify and guide you on potential next steps. If these initial steps do not lead to a resolution, or if the problem appears to be more complex, seeking assistance from a qualified mechanic is advisable to ensure proper diagnosis and repair. By following this methodical approach, you can effectively tackle the check engine light issue and potentially save on repair costs.

What are the common problems that could cause the check engine light to illuminate in a 2020 Honda Insight?

When the check engine light comes on in a 2020 Honda Insight, it can signal a range of issues that are often manageable for DIYers. One of the most straightforward problems to check is a loose gas cap, which can easily be tightened or replaced if damaged, preventing fuel vapor leaks. Another common culprit is a faulty oxygen sensor, which can be tested and replaced with basic tools, helping to restore fuel efficiency and reduce emissions. Additionally, issues with the catalytic converter may arise, often indicated by unusual noises or decreased performance, and while this can be more complex, some DIYers may choose to inspect it for blockages or damage. Spark plug wear is another frequent issue; replacing spark plugs is a relatively simple task that can significantly improve engine performance. The mass airflow sensor and ignition coils are also critical components that can trigger the check engine light if they malfunction, and while they may require more technical knowledge to diagnose, they can often be replaced by those with a bit of mechanical experience. Addressing these common problems promptly not only helps in turning off the check engine light but also ensures the vehicle runs smoothly and efficiently.

How urgent is it to address the check engine light in a 2020 Honda Insight?

When the check engine light illuminates in your 2020 Honda Insight, it is crucial to understand the urgency of the situation. This warning light is not merely a nuisance; it indicates that your vehicle's engine or emissions system may be experiencing issues that could escalate if left unaddressed. While some triggers, like a loose gas cap, may seem trivial, others could signify serious problems that compromise your vehicle's performance, fuel efficiency, and safety. Ignoring this warning can lead to more significant repairs and increased costs down the line, as minor issues can develop into major engine failures. For DIY enthusiasts, the first step is to use an OBD-II scanner to retrieve diagnostic trouble codes, which can help identify the specific issue at hand. By taking immediate action, you not only safeguard your vehicle's health but also enhance its longevity and reliability. Therefore, it is advisable to investigate the cause of the check engine light as soon as it appears, ensuring that your Honda Insight continues to operate at its best.

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