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2021 Honda Civic Check Engine Light

A flashing light reveals that the problem is extremely serious and if not taken care of expeditiously may result in major and serious damage to the car. If the check engine light in your 2021 Honda Civic starts flashing, that means that the problem needs attention expeditiously and your Honda should be brought in immediately. This blinking light normally indicates a severe engine misfire allowing unburned fuel to be dumped into the exhaust system. There it can swiftly raise the temperature of the catalytic converter to a point where damage is likely, requiring an costly and major repair. Some owners ask if spark plugs cause the check engine light to flash? This can specifically be the cause. A broken, old or dirty spark plug can cause the engine to misfire. If your check engine light is consistently flashing, please contact our team of automotive experts at Nalley Honda quickly by calling 7707568717. If the problem is entirely ignored or you continue to drive, this can spread to the spark plug wires, catalytic converter, or ignition coils which can lead to a very costly repair.

What could cause the check engine light to come on in a 2021 Honda Civic?

When your check engine light comes on, this could be as simple as tightening or replacing your gas cap. Likewise, the check engine light could also be a warning of a significant problem that could cause serious damage to your engine and come with a hefty and expensive repair bill. Depending on your make and model, the check engine light will illuminate or blink. A steady and continuous glow ordinarily means something less serious but a flashing check engine light signifies that your vehicle’s engine is in meaningful trouble and useful service is required expeditiously. If your check engine light is flashing in your 2021 Honda Civic, we tremendously recommend not to drive the car and schedule Honda service today. Below is a list of the most common reasons your check engine light can come on:

  • Your 2021 Honda Civic has a vacuum leak. Every Honda Civic has a vacuum system that performs a wide variety of functions. The vacuum system still helps lower adverse 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, exceptionally if they’re exposed to intense heat or extreme cold.
  • Issues with any aftermarket items. An aftermarket alarm, exhaust or other item can wreak extreme havoc on your 2021 Honda Civic if it’s not installed properly. These aftermarket parts and accessories can drain the battery, trigger the check engine light, or even prevent the vehicle from starting. If these issues sound familiar, bring your Civic to Honda and have our team of skilled certified mechanics assure that your aftermarket items were installed correctly and aren't causing any issue. Getting accessories, exceptionally aftermarket parts and accessories, or utilizing OEM parts first place might cost a little bit more but could help you save considerably from having to get poor work and damage caused by poor installation work corrected.
  • Your O2 Sensor (Oxygen Sensor) needs to be replaced. The Oxygen sensor, known as the O2 sensor, measures the amount of oxygen in your exhaust system. If there is excess oxygen in your exhaust system, fuel burns more quickly 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 broken sensor can not only affect your miles per gallon, but it can cause significant damage to your catalytic converter and your 2021 Honda Civic's spark plugs. The O2 sensor sends data to the vehicle’s onboard computer to determine the definitely correct mixture of air and fuel that enters the cylinders in your engine. A broken O2 sensor can still cause a vehicle to fail an emissions test.
  • New Spark Plugs or Plug Wires are needed for your 2021 Honda Civic. 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 smooth. 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 old, you will experience a noticeable 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, leading to more costly repairs.
  • Your mass airflow sensor (known as MAF) needs to be replaced. The mass airflow sensor in your Honda Civic 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 certain changes, like altitude. If your Honda Civic is having trouble starting, idling rough or has a sudden speedy change in the position of the throttle pedal, this could be a essential sign of a broken mass airflow sensor.
  • The battery is low or dead. The battery in your 2021 Honda Civic is every important. Without a vehicle battery, your vehicle won’t start, light up the road ahead, play the radio or charge your phone. Today’s vehicle batteries last much longer than they did a few decades ago, and they don't absolutely require maintenance. The price of a new one depends on the type of Honda you drive, but check our current service coupons and specials.
  • Your catalytic converter is bad or going bad. The catalytic converter is a part of your 2021 Honda Civic’s exhaust system. The catalytic converter's function is to turn the carbon monoxide created by the combustion process into carbon dioxide. A damaged catalytic converter is normally caused by invariably neglected maintenance, which is why Nalley Honda offers a complimentary multi-point inspection with every Honda service. If you have an issue with your catalytic converter and don't get it repaired, your 2021 Honda Civic will not pass an emissions test, show a lack of engine performance and will negatively affect your fuel economy. Your vehicle may run at a higher temperature, too, which can cause other dangerous problems from overheating.
  • One of the most common and frequent cause is that your 2021 Honda Civic gas cap is loose, damaged or missing. The gas cap for your 2021 Honda Civic serves multiple purposes. It prevents perilous 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 broken fuel cap? If your gas cap is old or has a ruptured seal, you can lose fuel through evaporation which will result in more trips to the pump and be more pricey. Luckily, to replace a gas cap isn't costly. If your check engine light turns on promptly after you put gas in your 2021 Honda Civic, first thing you should check is to make sure the cap isn’t loose — or that it's still on your car’s roof or at the fuel pump.

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. It could be anything from a bad sensor to plug wires needing to be replaced. If you check engine light is flashing, we propose that you pull over and contact Nalley Honda to help determine if your vehicle is safe to drive in or if we propose a tow truck. Since each check engine code has its own level of severity, it is generally difficult to predict how many miles you can be safe in driving with the warning light on.

Will the check engine light reset itself?

The check engine light on your 2021 Honda Civic will normally shut itself off if the issue or code that caused it to turn on is fixed. For instance, if the cause of your check engine light coming on was a loose gas cap, if it's tightened, the light will promptly turn itself off. Still, if your catalytic converter is working accurately, and you did a lot 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 2021 Honda Civic light will go off after about 20-40 miles. If you drive over that amount and the light is still on, you will need to bring it in to Nalley Honda so the light and code can be double-checked and reset.

2021 Honda Civic Check Engine Light Codes

The check engine light turning on can be quite intimidating, especially to see that little light on your vehicle’s dashboard suddenly illuminate, 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, again known as the OBD (on-board computer diagnostic system) in your Civic. There are hundreds of different codes that your check engine light can properly represent. While that sounds daunting, with a little patience, tackling basic diagnostics will give you useful knowledge about your vehicle and will again allow that vital Check Engine Light to do what it is genuinely supposed to do: be your guide. Sadly, apparent and helpful vehicle symptoms do not always accompany an illuminated Check Engine Light. Since there are hundreds of conceivable OBD codes, there are again hundreds of conceivable reasons for the light, including:

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

This is why it is critical for someone who does not have a lot of prevalent automotive knowledge to not assume what a code means. Call Nalley Honda at 7707568717 today or schedule your check engine light service online today! When your check engine light comes on, you should get it checked out swiftly by a talented certified Honda mechanic. If the engine light comes on due to a serious concern, you risk damaging your vehicle further by not repairing the issue right away.

2021 Honda Civic Check Engine Light Flashing

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

Every 2021 Honda Civic was designed with a high-technology performance monitoring system with a computer, and a series of sensors positioned strategically throughout the car on its essential systems. The speedy sensors are continually detecting conditions while sending important data to the electronic control unit. If the electronic control unit detects that the data is out of factory specifications, the Check Engine Light illuminates telling you that there is a problem. However, unfortunately that is the limitation of the Check Engine Light – it won’t tell you what specifically is wrong nor what to do about it. That’s where we come in; Nalley Honda provides a Check Engine Light Diagnosis Service that isolates the core problem and gives you a recommendation on what to do next from a Tremendously Qualified Service professional.

Check Engine Light Service 2021 Honda Civic

What do you do when you’re driving along in your Honda Civic and suddenly, a yellow light illuminates on your dash and says "Check Engine". If you’re like most Honda owners, your heart sinks exceptionally because you may have precisely idea about what that light is trying to tell you or how you should react. The fear of the unknown (or the cost of the unknown) can be just as stressful. But take a deep, serene 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 suggested that you get your 2021 Honda Civic checked immediately. Ignoring that warning could end up causing major, considerable damage to costly engine components.

When your 2021 Honda Civic's ECM (electronic control module), which is the vehicle's onboard computer, finds a problem in the electronic control system that it can’t correct, a computer turns on your check engine light. This amber or yellow light is ordinarily 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 can instantly identify the issue, whether it's a sensor or a failing engine part. This code is read with an electronic scan tool that is used by our Honda auto repair mechanics at Nalley Honda. There are likewise a number of comparatively inexpensive code readers that are designed for do-it-yourselfers, should you pick that route too. While this code will tell you the issue that is detected, a true diagnosis still requires an experienced professional to determine the exactly correct issue and repair it.

Is it safe to drive your 2021 Honda Civic with the check engine light on?

If the check engine light is flashing, this means that there is a serious issue and it is suggested to service your Honda Civic promptly. This question is not exceptionally simple 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 drive. This is generally 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 serious problem. Call the experts at Nalley Honda by dialing 7707568717 so you can describe the issues. Or reduce your speed and bring your 2021 Honda to our certified mechanics as soon as conceivable.

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

The check engine light warns of issues ranging from a gas cap that's not perfectly tightened to a more serious failure like a bad catalytic converter or a problem with one of the car's oxygen sensors, so it good to get the proper code reading and diagnosis. The average cost for a check engine light diagnosis & testing is typically between $88 and $111. The good news, Nalley Honda offers completely complimentary multi-point inspections and free diagnostics, in most cases, to help determine the cause of your check engine light.

What Does the Check Engine Light Mean?

One of the most commonly misunderstood lights or indicators in your 2021 Honda Civic is the check engine light. The check engine light is part of the essential onboard diagnostics system, and displays in a variety of different ways. It can say "Check Engine", it can be a symbol of an engine, it can even be a combination of both. This light illuminates in either an amber or red color and is part of the diagnostics system found on your car. Onboard computers increasingly have controlled and monitored car performance since the 80s and do a variety of things for your 2021 Honda Civic. Some of these essential duties include controlling engine speed, ignition timing, shifting automatic transmissions and implementing security control, just to name a few. With that being said, the check engine light can mean a wide range of different things. It can be as simple as your gas cap being loose or as perilous as engine knocking. If your check engine light is on in your 2021 Honda Civic, contact Nalley Honda. Contact Nalley Honda today! Our Honda service department can help you find out what code is turning your check engine light on or diagnose why your check engine light is flashing.