Can you drive with exhaust emissions light on?
The short answer is that it is generally not recommended to drive with the exhaust emissions light on, as it indicates a problem with your vehicle's emissions control system that needs to be addressed. However, the specific circumstances and the severity of the issue can determine whether it is safe to continue driving in the short term.
Understanding the Exhaust Emissions Light
The exhaust emissions light, also known as the check engine light or malfunction indicator light (MIL), is a warning indicator on your vehicle's dashboard that illuminates when the onboard diagnostic system detects a problem with the emissions control system. This system is responsible for reducing the harmful pollutants released from your vehicle's exhaust, such as carbon monoxide, hydrocarbons, and nitrogen oxides.
When the emissions light is on, it means that the diagnostic system has detected a problem that could be affecting the vehicle's emissions performance. This could be caused by a variety of issues, including a faulty sensor, a problem with the catalytic converter, or a leak in the emissions system.
Driving with the Emissions Light On
While it is generally not recommended to drive with the emissions light on, the severity of the issue and the specific circumstances can determine whether it is safe to continue driving in the short term. Here are some key considerations:
- Severity of the issue: If the problem is minor, such as a loose gas cap or a faulty sensor, it may be safe to continue driving for a short period of time while you schedule a repair. However, if the issue is more serious, such as a problem with the catalytic converter or a major leak in the emissions system, it is best to have the vehicle inspected and repaired as soon as possible.
- Emissions regulations: In some areas, driving with the emissions light on may be illegal, as it can indicate that the vehicle is not meeting emissions standards. Depending on your location, you may be subject to fines or other penalties if you continue to drive with the light on.
- Vehicle performance: In some cases, a problem with the emissions system can also affect the vehicle's performance, such as reduced fuel efficiency or power. Continuing to drive with the light on in these situations may cause further damage to the vehicle.
If the emissions light is on, it is generally recommended to have the vehicle inspected and repaired as soon as possible to ensure that it is operating safely and within emissions regulations. Ignoring the light can lead to more serious and costly problems down the road.
What triggers emissions light?
Emissions system fault
A component of this is the oxygen sensor, which can sense if the engine is burning too much or not enough fuel. This can trigger the CEL to indicate that the car is either running too rich or too lean, or that there's an issue with the sensor itself.
How long can you drive with an emissions light on?
The answer is it is safe to drive from 50-100 miles. To maintain your car's health, it is always better to get it checked immediately when you see the check engine light.
Can I drive with an exhaust emission warning light on?
Generally, unless there are issues with your engine and you only have a solid amber-coloured EML, you can continue driving to your destination. Have your vehicle looked at by an expert as soon as possible to avoid risking further damage to your car.
How much does it cost to fix emission problems?
Repairs: - Minor repairs, like fixing a vacuum line or a small hose, could range from $50 to $200. - More extensive repairs, such as replacing a faulty sensor or a component in the emissions system, can cost between $200 and $1500 or more.
How do you pass exhaust emissions?
Your car will pass the MOT emissions test if the following criteria are met:
- NThere's no visible smoke coming out of the exhaust.
- NThe diesel emissions restrictions are not exceeded.
- NYour car's diesel particulate filter has not been removed or tampered with in any way.
- QSmoke is coming out of the exhaust.
How to pass emissions with light on?
You Won't Pass Inspection with Check Engine Light On
In any case, never try to pass inspection with check engine light on. Instead, get your vehicle repaired at a Jiffy Lube service center before you head to the emissions test. Usually, even having the MIL illuminated is grounds for a failed test.
