Understanding EML Lights & How to Resolve Them

The Engine Management Light (EML) is one of the most critical indicators on your vehicle’s dashboard. When this light comes on, it signals that something within the engine or related systems isn’t functioning as it should. For many drivers, seeing this warning light can cause concern. At Refresh, we’re here to help you understand what it means and how to resolve it.

What is an EML Light?

The EML is part of your vehicle’s onboard diagnostics system (OBD). It monitors various components, including the engine, emissions system and electronic systems. When the system detects an issue, it triggers the EML to alert the driver.

Common Causes of the EML Light

There are many reasons why the EML may come on, ranging from minor issues to more serious problems. Here are some common causes:

1. Faulty Sensors: Issues with oxygen sensors, mass airflow sensors or any other engine sensors can trigger the EML.
2. Emissions System Faults: A problem with the catalytic converter or exhaust system may cause the light to illuminate.
3. Ignition System Problems: Faulty spark plugs or ignition coils can cause misfires and trigger a EML.
4. Fuel System Issues: Problems with fuel injectors or fuel pressure.
5. Loose or Damaged Components: A simple issue like a loose fuel cap can sometimes cause the EML to come on.
6. Electrical Faults: Wiring issues or problems with the engine control unit (ECU) can also activate the warning light.

What to Do When the EML Light Comes On

If your EML light comes on, follow these steps to determine the severity of the issue and decide on the next course of action:

1. Check the Light Colour (if applicable): Some vehicles use different colours for the EML. Amber often indicates a less urgent issue, while red or flashing lights suggest a more serious problem.
2. Assess Vehicle Performance: Is the car driving differently? Loss of power, misfiring, or rough idling can indicate a serious problem.
3. Avoid Heavy Driving: If the light is on or flashing, avoid high speeds or long distances until the issue is diagnosed.

Diagnosing and Resolving EML Issues

At Refresh, we use state of the art diagnostic equipment to quickly and accurately identify the cause of the EML warning. Here’s what our process typically involves:

1. Initial Diagnostic Scan: We connect advanced diagnostic tools to your vehicle’s OBD system to retrieve error codes.
2. Analysis: Our skilled technicians interpret the diagnostic codes and inspect the relevant components.
3. Service Team: Our service team will speak directly to you and give a clear a explanation as to the what the problem is and the projected costs for your authorisation.
4. Repairs: Once we have authority, we carry out the required repairs.
5. Final Testing: After repair, we clear the fault codes and conduct thorough tests to ensure your vehicle is functioning as intended.

Learning more

Want to learn some basic car life skills? Why not attend one of our vehicle workshops. These are totally free and will provide you with some essential skills to help maintain your vehicle.

Preventing EML Issues

While some EML warnings are unavoidable, regular maintenance can help minimise the chances of the light coming on:

• Routine Servicing: Meet or exceed your vehicle’s recommended service schedule.
• Fuel System Care: Use high quality fuel.
• Prompt Repairs: Address minor issues early to prevent them from escalating.

Conclusion

The EML light is not something to ignore, but it’s also not necessarily a cause for panic. At Refresh Automotive, we have the expertise and equipment to diagnose and resolve EML issues efficiently. If your EML light is on, book an appointment with us today and let our trusted team get you back on the road with peace of mind.