2013 INFINITI M37 Has A Check Engine Light

Troubleshooting the Check Engine Light in Your 2013 INFINITI M37: Common 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 2013 INFINITI M37 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 2013 INFINITI M37 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 2013 INFINITI M37?

When faced with a check engine light on your 2013 INFINITI M37, it's essential to adopt a systematic diagnostic approach to identify the underlying issue effectively. Start by checking the gas cap, as a loose or damaged cap is a common and easily fixable cause of the warning light. Next, monitor your dashboard gauges for any unusual readings that might indicate specific problems. Utilizing an OBD-II scanner is a crucial step; this tool connects to your vehicle's diagnostic port and retrieves error codes that can guide you toward the source of the issue. Additionally, inspect the condition of your spark plugs, as worn plugs can trigger the check engine light. Don't overlook the wiring and connections under the hood; any visible damage or corrosion could lead to engine problems. Finally, consulting your owner's manual can provide tailored insights into what the check engine light may signify for your specific model. By following these steps, you can effectively narrow down the potential causes of the check engine light and take informed actions to resolve the issue.

What are the common problems that could cause the check engine light to illuminate in a 2013 INFINITI M37?

When the check engine light illuminates in a 2013 INFINITI M37, it signals potential issues that require attention, making it essential for DIY enthusiasts to understand the common problems associated with this warning. A loose gas cap is often the simplest fix, as it can easily be checked and tightened to resolve the issue. More complex problems may involve a faulty oxygen sensor, which is critical for monitoring exhaust emissions and ensuring optimal fuel efficiency; a malfunction here can lead to decreased engine performance. Additionally, the catalytic converter may present issues, indicating a failure or inefficiency that needs to be addressed to prevent further complications. Spark plug or ignition coil failures are also common, as they can disrupt the ignition process, leading to rough engine operation. Another potential culprit is a malfunctioning mass airflow sensor, which can cause incorrect air-fuel mixture readings, triggering the check engine light. Lastly, problems with the exhaust gas recirculation (EGR) system can also contribute to this warning, as it plays a vital role in reducing emissions. Timely diagnosis and resolution of these issues are crucial for maintaining the vehicle's performance and preventing more significant damage, so if the check engine light persists, consulting a qualified mechanic is highly recommended.

How urgent is it to address the check engine light in a 2013 INFINITI M37?

When the check engine light illuminates in your 2013 INFINITI M37, it signals a need for immediate attention to avoid escalating issues that could compromise your vehicle's performance and safety. Ignoring this warning can lead to a range of problems, from minor inconveniences like decreased fuel efficiency to severe mechanical failures that could leave you stranded or incur costly repairs. For DIY enthusiasts, the first step is to use an OBD-II scanner to retrieve diagnostic trouble codes, which can help pinpoint the underlying issue. Common culprits may include something as simple as a loose gas cap or more complex problems like a malfunctioning oxygen sensor. Addressing these issues promptly not only helps maintain your vehicle's health but also ensures compliance with emissions regulations, ultimately protecting both your investment and the environment. Therefore, taking the time to diagnose and resolve the cause of the check engine light is crucial for the longevity and reliability of your INFINITI M37.

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