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What could cause the check engine light to come on in a 2012 Nissan Sentra?

When your check engine light comes on, this could be as prevailing as tightening or replacing your gas cap. Likewise, the check engine light could also be a warning of a unhealthy problem that could cause unhealthy damage to your engine and come with a substantial repair bill. Depending on your make and model, the check engine light will illuminate or blink. A dependable glow normally means something less unhealthy but a flashing check engine light indicates that your vehicle’s engine is in unhealthy trouble and service is needed instantly. If your check engine light is flashing in your 2012 Nissan Sentra, we extremely recommend not to drive the vehicle and schedule Nissan service today. Below is a list of the most acknowledged reasons your check engine light can come on:

  • Your O2 Sensor (Oxygen Sensor) needs to be replaced. The Oxygen sensor, prominent as the O2 sensor, measures the amount of oxygen in your exhaust system. If there is excess oxygen in your exhaust system, fuel burns faster and your vehicle will be less efficient when it comes to fuel economy. So what happens if I don’t replace your O2 sensor? A faulty sensor can not only affect your miles per gallon, but it can cause damage to your catalytic converter and your 2012 Nissan Sentra's spark plugs. The O2 sensor sends data to the vehicle’s onboard computer to read the right mixture of air and fuel that enters the cylinders in your engine. A bad O2 sensor can also cause a car to fail an emissions test.
  • New Spark Plugs or Plug Wires are needed for your 2012 Nissan Sentra. The spark plugs are the part of your engine that ignites the air/fuel mixture in the combustion chamber of your vehicle. This explosion is what moves the pistons and makes the engine run. The spark plug wires deliver the spark from the ignition coil to the spark plugs. If your spark plugs or spark plug wires are bad or erstwhile, you will experience poor performance and reduced power. In some extreme cases, your engine will have trouble starting or continuing to run. Worn spark plugs and plug wires can cause clogged catalytic converter or damage to ignition coils and O2 sensors, major to more expensive repairs.
  • The battery is low or dead. The battery in your 2012 Nissan Sentra is every forceful. Without a car battery, your car won’t start, light up the road ahead, play the radio or charge your phone. Today’s car batteries last much longer than they did a few decades ago, and they don't truly require maintenance. The rate of a new one depends on the type of Nissan you drive, but check our contemporary service coupons and specials.
  • Your mass airflow sensor (known as MAF) needs to be replaced. The mass airflow sensor in your Nissan Sentra is what determines how much fuel is needed to run your engine efficiently by measuring the amount of air entering the engine. As a part of the engine management system, the mass airflow sensor helps adjust to accurate changes, like altitude. If your Nissan Sentra is having trouble starting, idling rough or has a sudden change in the position of the throttle pedal, this could be a sign of a bad mass airflow sensor.
  • Your 2012 Nissan Sentra has a vacuum leak. Every Nissan Sentra has a vacuum system that performs a wide variety of functions. The vacuum system also helps lower harmful emissions by routing the fumes as gasoline evaporates through the engine. If you notice that your RPM is high in idle or randomly surges, a vacuum leak could be the cause. Over time, vacuum hoses can dry out and crack, chiefly if they’re exposed to important heat or extreme cold.
  • One of the most compelling and frequent cause is that your 2012 Nissan Sentra gas cap is loose, damaged or missing. The gas cap for your 2012 Nissan Sentra serves multiple purposes. It prevents gas fumes from being released when you aren't driving, it seals the fuel system and helps maintain pressure within the fuel tank. What happens if you have a bad fuel cap? If your gas cap is erstwhile or has a ruptured seal, you can lose fuel through evaporation which will result in more trips to the pump. Luckily, to replace a gas cap isn't expensive. If your check engine light turns on hastily after you put gas in your 2012 Nissan Sentra, original thing you should check is to make courageous the cap isn’t loose — or that it's still on your car’s roof or at the fuel pump.
  • Your catalytic converter is bad or going bad. The catalytic converter is a part of your 2012 Nissan Sentra’s exhaust system. The catalytic converter's work is to turn the carbon monoxide created by the combustion process into carbon dioxide. A damaged catalytic converter is usually caused by neglected maintenance, which is why Nalley Nissan of Cumming offers a complimentary multi-point inspection with every Nissan service. If you have an issue with your catalytic converter and don't get it fixed, your 2012 Nissan Sentra will not pass an emissions test, show a lack of engine performance and will negatively affect your fuel economy. Your car may run at a higher temperature, too, which can cause extra problems from overheating.
  • Issues with any aftermarket items. An aftermarket alarm, exhaust or extra item can wreak havoc on your 2012 Nissan Sentra if it’s not installed accordingly. These aftermarket parts and accessories can deposit the battery, trigger the check engine light, or even stop the vehicle from starting. If these issues sound prominent, deliver your Sentra to Nissan and have our team of certified mechanics ensure that your aftermarket items were installed well and aren't causing any issue. Getting accessories, chiefly aftermarket parts and accessories, or using OEM parts original place might price a little bit more but could save you money from having to get poor work and damage caused by poor installation work corrected.

What Does the Check Engine Light Mean?

One of the most typically misunderstood lights or indicators in your 2012 Nissan Sentra is the check engine light. The check engine light is part of the onboard diagnostics system, and displays in a few divergent ways. It can say "Check Engine", it can be a symbol of an engine, it can even be a combination of both. This light brightens in either an amber or red color and is part of the diagnostics system found on your vehicle. Onboard computers increasingly have controlled and monitored vehicle performance since the 80s and do a collection of things for your 2012 Nissan Sentra. Some of these include controlling engine speed, shifting automatic transmissions ignition timing, and implementing stability control, just to name a few. With that being said, the check engine light can mean a variety of disparate things. It can be as authentic as your gas cap being loose or as draconian as engine knocking. If your check engine light is on in your 2012 Nissan Sentra, contact Nalley Nissan of Cumming. Our Nissan service department can help you find out what code is turning your check engine light on or investigate why your check engine light is flashing. Contact Nalley Nissan of Cumming today!

How many miles can you drive with the check engine light?

The safest bet is to decipher the code and then plan your strategy accordingly. If you check engine light is flashing, we recommend that you pull over and contact Nalley Nissan of Cumming to assist learn if your vehicle is able to drive in or if we recommend a tow truck. It could be anything from a bad sensor to plug wires needing to be replaced. Since each check engine code has its own level of severity, it is imperative to predict how sufficient miles you can drive with the warning light on.

Check Engine Light Service 2012 Nissan Sentra

What do you do when you’re driving along in your Nissan Sentra and suddenly, a yellow light illuminates on your dash and says "Check Engine". If you’re like most Nissan owners, your heart sinks a tiny because you have tiny idea about what that light is trying to tell you or how you should react. The fear of the unknown (or the value of the unknown) can be just as stressful. But take a deep breath and realize the light coming on doesn’t mean you have to pull the vehicle over to the side of the road and call a tow truck, but it is recommended that you get your 2012 Nissan Sentra checked as soon as achievable. Ignoring that warning could end up causing major damage to expensive engine parts.

When your 2012 Nissan Sentra's ECM (electronic control module), which is the vehicle's onboard computer, finds a problem in the computerized control system that it can’t honest, a computer turns on your check engine light. This amber or yellow light is typically labeled “check engine” or “service engine soon”, or the light may be nothing more than a picture of an engine, or a picture of the engine with the word “check.”

When the light turns on, the ECM stores an engine code or “trouble code” in its memory that identifies as the issue, whether it's a sensor or a failing engine part. This code is find out with an electronic diagnose tool that is used by our Nissan auto repair mechanics at Nalley Nissan of Cumming. There are also a number of relatively inexpensive code readers that are designed for do-it-yourselfers, should you indicate that route too. While this code will tell you the issue that is detected, a true diagnosis still requires an experienced technological to indicate the issue and repair it.

2012 Nissan Sentra Check Engine Light Codes

The check engine light turning on can be quite intimidating to see that little light on your vehicle’s dashboard swiftly illuminates, but in reality, it is not something that should cause you to shut down in fear right away. If you hear the term, diagnostic trouble codes (DTC), these are just another name for check engine light codes. These are automotive computer codes stored by the ECM, also common as the OBD (on-board computer diagnostic system) in your Sentra. There are hundreds of odd codes that your check engine light can suggest. While that sounds daunting, with a little patience, tackling crucial diagnostics will give you realistic knowledge about your automobile and will also allow that Check Engine Light to do what it is exactly supposed to do: be your guide. Regrettably, conspicuous and convenient automobile symptoms do not always accompany an illuminated Check Engine Light. Since there are hundreds of possible OBD codes, there are also hundreds of possible reasons for the light, including:

  • Emissions controls issues
  • Ignition system faults
  • Transmission issues
  • Old Battery
  • Computer output circuit issues
  • Loose Gas Cap or Missing Gas Cap
  • Fuel and air metering systems problems
  • O2 Sensor
  • Bad Spark Plugs

This is why it is provocative for someone who does not have a lot of automotive knowledge to not assume what a code means. Call Nalley Nissan of Cumming at 7706290287 today or schedule your check engine light service online today! If the engine light comes on due to a active concern, you risk damaging your car further by not repairing the issue right away. When your check engine light comes on, you should get it checked out rapidly by a certified Nissan mechanic.

Is it safe to drive your 2012 Nissan Sentra with the check engine light on?

This question is not very common because it all depends on the severity of the issue. If the cause is a minor issue, such as a loose gas cap, it should be safe to commute. This is naturally indicated by a steady glow of the check engine light. If you notice a difference in the performance of the car, it could be an indication of a more perilous problem. If the check engine light is blinking, this means that there is a perilous issue and it is recommended to service your Nissan Sentra quickly. Call the experts at Nalley Nissan of Cumming by dialing 7706290287 so you can describe the issues. Or reduce your speed and bring your 2012 Nissan to our certified mechanics as soon as attainable.

How much does it cost to get the engine light checked?

The average cost for a check engine light diagnosis & testing is normally between $88 and $111. The favorable news, Nalley Nissan of Cumming offers complimentary multi-point inspections and free diagnostics, in most cases, to help find out the cause of your check engine light. The check engine light warns of issues ranging from a gas cap that's not properly tightened to a more unhealthy failure like a bad catalytic converter or a problem with one of the car's oxygen sensors, so it favorable to get the handy code reading and diagnosis.

2012 Nissan Sentra Check Engine Light Flashing

Although there are copious potential causes of an illuminated Check Engine Light, we know from years of providing Check Engine Light Diagnosis Service that there are countless simple causes comprising something as easy as a loose gas cap. Substitute simple reasons for a Check Engine Light are faulty emissions control part, faulty head gasket, a malfunction with the fuel injection system, dirty mass airflow sensor, damaged oxygen sensor, or defective spark plugs to name a few. No matter what is the root cause of the Check Engine Light, we have the Nissan Certified Technicians and the certified service protocol to isolate the root problem and repair it as decisive to restore factory specifications. When this happens, the Check Engine Light turns off, and you can leave the service center knowing that your Nissan issue was fixed.

Every 2012 Nissan Sentra was designed with a high-technology performance monitoring system with a computer, and a series of sensors positioned strategically throughout the automobile on its hard systems. The sensors are continually detecting conditions while sending data to the electrical control unit. If the electrical control unit detects that the data is out of factory specifications, the Check Engine Light illuminates telling you that there is a problem. However, that is the limitation of the Check Engine Light – it won’t tell you what precisely is wrong nor what to do about it. That’s where we come in; Nalley Nissan of Cumming provides a Check Engine Light Diagnosis Service that isolates the core problem and gives you a recommendation on what to do next from a Very Qualified Service professional.

2012 Nissan Sentra Check Engine Light

If the check engine light in your 2012 Nissan Sentra starts flashing, that means that the problem needs sudden attention and your Nissan should be brought in promptly. A flashing light indicates that the problem is precarious and if not taken care of promptly may result in grand damage to the automobile. This blinking light commonly expresses a rigid engine misfire allowing unburned fuel to be ejected into the exhaust system. There it can suddenly raise the temperature of the catalytic converter to a point where wear and tear is available, requiring an pricey repair. Some owners ask if spark plugs cause the check engine light to flash? This can absolutely be the cause. A intrusive, classic or dirty spark plug can cause the engine to misfire. If the problem is ignored or you continue to drive, this can spread to the spark plug wires, catalytic converter, or ignition coils which can lead to a exceedingly fancy repair. If your check engine light is flashing, please contact our squad of automotive experts at Nalley Nissan of Cumming immediately by calling 7706290287.

Will the check engine light reset itself?

The check engine light on your 2012 Nissan Sentra will usually shut itself off if the issue or code that caused it to turn on is serviced. For example, if the cause of your check engine light coming on was a loose gas cap, if it's tightened, the light will turn itself off. Likewise, if your catalytic converter is going functional, and you did assorted of stop-and-go driving, that may have turned on the check engine light due to the high usage of the converter. In most cases, your 2012 Nissan Sentra light will go off after about 20-40 miles. If you commute over that amount and the light is still on, you will need to bring it in to Nalley Nissan of Cumming so the light and code can be double-checked and reset.