Has the check engine light ever appeared on your dashboard suddenly? While some people panic when they see it, most of the drivers tend to ignore it. The engine warning light can mean anything from a loose fuel cap to a critical engine problem. What you need is neither panic nor ignorance, but caution and guidance at the right time.
A car driver needs to figure out why the engine light is on before they can take the correct measure to fix it. This is a guide that will help you find out the common causes behind check engine warning lights. And you can get an estimate of how much it will cost to diagnose the issue.
What Does The Check Engine Light Mean?
The check engine light, technically referred to as the engine management light, is part of the onboard diagnostic system of the vehicle. When the system detects any kind of problem, this light will illuminate on the dashboard so that it grabs the attention of the driver without fail. The problem can be engine performance, fuel efficiency, or emissions.
The check engine light gives warning in different ways:
- 1.A steady warning light appears
- 2. An intermittently blinking engine light
- 3. A flashing check engine light appears
- 4.Check warning light with other dashboard alerts
Let us look at what each of these means.
Different Types of Check Engine Lights: What They Mean?
The different types of check engine lights and what they stand for are explained here.
1.Steady Warning Light
If the car check engine light is steady, it means that there is a problem. You need to attend to it, but mostly it is not an emergency. Get it checked to confirm what it is.
2.Engine Light Intermittently Blinking
If the engine light blinks and it stops, it means there may be an intermittent fault. Maybe under specific driving conditions. Sometimes, it might be a temporary engine misfire. Even if the engine light disappears, it is advised to get it checked, as there is a chance of the problem returning again.
3. Flashing Check Engine Light
If there is a flashing check engine light, which means the engine light is blinking continuously, then it requires quick attention. It often indicates that there is a serious issue like an engine misfire. If you ignore this, it can lead to more damage.
Warning Light & Other Dashboard Alerts
If the check engine light appears with other dashboard alerts, it can be easier to identify the problem. For example, if the oil pressure light appears, there is something wrong with oil pressure or engine lubrication. If it is the battery light or temperature control light, it indicates issues with the alternator or engine overheating.
4. Warning Light & Other Dashboard Alerts
If the check engine light appears with other dashboard alerts, it can be easier to identify the problem. For example, if the oil pressure light appears, there is something wrong with oil pressure or engine lubrication. If it is the battery light or temperature control light, it indicates issues with the alternator or engine overheating.
Common Check Engine Light On Causes
A check engine light can be caused by anything. To get an accurate diagnosis, it is always recommended to get guidance from professionals. Here are some of the common causes for a check engine lights.
1.Loose or Damaged Fuel Cap
One of the most common reasons why a check engine light appears is due to a loose fuel cap.
How to identify?
- Check engine light on after refueling
- Decreased fuel efficiency
- Fuel smell around vehicle
How to fix?
Tighten fuel cap / replace fuel cap
Diagnosis Cost (Estimate)
AED 50 – 150
2. Engine Misfire
The most critical reason for engine light activation is engine misfire. This needs immediate attention.
How to identify?
- Engine vibration
- Power loss
- Repeated blinking of the engine light
How to solve?
Quickly get the vehicle diagnosed. Might require repair to ignition, fuel, or air systems.
Diagnosis Cost (Estimate):
AED 150 – 350
3. Faulty Oxygen Sensor
The amount of oxygen present in the exhaust gases is monitored by the oxygen sensor. When this sensor becomes faulty, the engine might start burning more fuel than needed.
How to identify?
- More fuel consumption
- Rough engine performance
- Emissions testing failed
How to solve?
Replace the oxygen sensor
Diagnosis Cost (Estimate)
AED 150 – 300
4. Faulty Mass Air Flow (MAF) Sensor
The MAF sensor measures the amount of air that enters the engine. So if it is faulty, the wrong amount of air will get inside the engine.
The signs are:
- Engine stalling
- Poor acceleration
- Less fuel economy
How to solve it?
Try cleaning the sensor first, if it does not work, replace it.
Diagnostic Cost (Estimate):
AED 150 – 300
5. Malfunctioning Spark Plugs/Ignition Coils
The fuel-air mixture inside the engine is ignited by the spark plugs and ignition coils.
Signs of Malfunctioning:
- Engine hesitation
- Rough idling
- Noticeable performance issues
How to resolve?
Replace the malfunctioning part
Diagnosis Cost (Estimate)
AED 150 – 350
6.Catalytic Converter Problems
The function of the catalytic converter is to reduce harmful emissions. When it is clogged or damaged, it can be one of the reasons for engine light.
The symptoms are:
- Less engine power
- Strong exhaust smell
- Flashing check light if the case is severe
How to solve?
Try repairing or replacing the catalytic converter
Diagnosis Cost (Estimate):
AED 200 – 500
Quick Diagnosis Table: Engine Warning Light Common Causes & Diagnostic Costs
| Problem | Common Signs | Estimated Diagnosis Costs |
| Fuel Cap Issues | Fuel smell, warning light | AED 50-150 |
| Engine Misfire | Flashing engine light | AED 150-350 |
| Oxygen Sensor Issues | Poor fuel economy | AED 150-300 |
| MAF Sensor Issues | Poor acceleration | AED 150-300 |
| Spark Plug/Ignition Coil Issues | Misfire, rough idle | AED 150-350 |
| Catalytic Converter Issues | Power loss | AED 200-500 |
| Battery/Electrical Issues | Multiple Warning Lights | AED 150-400 |
| Vacuum Leak | Rough running | AED 150-400 |
Can You Continue Driving With Engine Light On?
It is usually considered safe for short distances. If the fuel cap is loose or if there is only a minor issue, then you do not have much to worry about.
However, if the check engine light is blinking continuously, then the case is severe. The car needs to get diagnosed as quickly as possible.
Professional Check Engine Light Repair in Abu Dhabi
Identifying the exact reason why your check engine light is on is necessary to take the right measure to solve it. It is much needed in busy cities like Abu Dhabi.
CarLab Auto Repair is a trusted Car Service in Abu Dhabi who provides professional check engine light repair and diagnostic services in Abu Dhabi. Our experienced technicians, combined with advanced diagnostic equipment, can detect issues accurately. We can provide you with a cost-effective solution.
Is your check engine light on? Contact us today!
