2012 Chevrolet Camaro Has A Check Engine Light

Check Engine Light Issues in 2012 Chevrolet Camaro and Their Resolutions

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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 2012 Chevrolet Camaro 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 2012 Chevrolet Camaro 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 2012 Chevrolet Camaro?

When faced with a check engine light on your 2012 Chevrolet Camaro, it's essential to adopt a systematic diagnostic approach. Start by checking 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 review your dashboard gauges for any additional warning lights or irregularities that might indicate other underlying problems. Utilizing an OBD-II scanner is a crucial step; it allows you to retrieve specific error codes that can pinpoint the exact issue. After gathering this information, inspect the spark plugs for any signs of wear or damage, as faulty plugs can contribute to engine performance issues. Additionally, examine the vacuum hoses for cracks or leaks, which can also affect engine function. Finally, ensure that all essential fluid levels—such as oil, coolant, and transmission fluid—are adequate, as low levels can sometimes activate the check engine light. By following these steps, you can effectively narrow down the potential causes of the check engine light and take appropriate action to resolve the issue.

What are the common problems that could cause the check engine light to illuminate in a 2012 Chevrolet Camaro?

When the check engine light illuminates in a 2012 Chevrolet Camaro, it serves as a crucial warning that something may be amiss under the hood. Common issues that can trigger this alert include a loose gas cap, which can disrupt the vehicle's evaporative emissions system, leading to unnecessary emissions and potential fuel loss. Another frequent cause is a faulty oxygen sensor, which not only affects fuel efficiency but can also increase harmful emissions, prompting the onboard diagnostics system to activate the light. Additionally, problems with the catalytic converter, such as inefficiency or failure, can significantly impact the vehicle's emissions control system. Other potential culprits include faulty spark plugs or ignition coils, which are vital for proper engine combustion, and a malfunctioning mass airflow sensor that can throw off the air-fuel mixture. Complications with the exhaust gas recirculation (EGR) system, vacuum leaks, or even a malfunctioning thermostat can also lead to the check engine light coming on. Lastly, issues related to the transmission, such as low fluid levels or sensor failures, may contribute to this warning. If the check engine light activates, it is essential to perform a thorough diagnostic check to identify the specific issue, ensuring the vehicle remains safe and efficient on the road.

How urgent is it to address the check engine light in a 2012 Chevrolet Camaro?

When the check engine light illuminates in your 2012 Chevrolet Camaro, it serves as a crucial warning that should not be ignored. The urgency of addressing this issue cannot be overstated, as the light can signify a range of problems, from minor sensor malfunctions to serious engine complications. Neglecting this warning may lead to decreased fuel efficiency, increased emissions, and potentially severe engine damage, which can escalate repair costs significantly. Moreover, some of the issues indicated by the check engine light may affect your vehicle's emissions system, risking failure during emissions testing. By taking immediate action to diagnose and resolve the underlying problem, you not only safeguard your vehicle's performance but also prevent minor issues from evolving into major repairs. Therefore, if you see the check engine light, it is essential to investigate the cause promptly to maintain the reliability and longevity of your Camaro.

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