What is the check emission system light on a Subaru?

Understanding the Check Emission System Light on a Subaru
The check emission system light on a Subaru is an indicator that there may be an issue with the vehicle’s emission control system. This light is part of the On-Board Diagnostics (OBD) system, which monitors various systems in the vehicle and alerts the driver when something is out of the preset parameters. When this light comes on, it can indicate a range of issues related to the emission control system, ignition system, fuel system, electrical issues, or failed sensors.
Common Reasons for the Check Engine Light to Come On
1. Emission System Fault: A fault in the emission system, often related to the evaporation canister, can trigger the check engine light. Replacing the canister may solve the problem, but it’s recommended to have the Subaru CEL codes read by factory-trained technicians to accurately diagnose the issue.
2. OBD II Compliance: Starting in 1996, all passenger vehicles and light duty trucks produced or imported for sale in the U.S. had to be OBD II compliant. This technology involves the check engine light or MIL, which is part of the vehicle emissions regulations.
3. Sensor and Control Unit Monitoring: The Subaru Forester is equipped with a high-technology performance monitoring system with sensors strategically positioned throughout the vehicle. When the electronic control unit detects that the data is out of factory specifications, the check engine light illuminates, indicating a problem with the emission control system.
What to Do When the Check Engine Light Comes On
When the check engine light comes on, it’s important to take action to diagnose and address the issue. Ignoring the light can lead to serious damage to the vehicle’s components. It’s recommended to have the vehicle diagnosed by qualified mechanics to identify the specific issue and take appropriate measures to resolve it.
User Experiences with the Check Emission System Light
Some Subaru owners have reported experiences with the check emission system light, including additional indicators such as the hill start assist light, cruise control light, and vehicle stuck in sport mode. In some cases, issues with the throttle position sensor have been identified as the cause of these warning lights.
In summary, the check emission system light on a Subaru is an important indicator of potential issues with the vehicle’s emission control system. When this light comes on, it’s advisable to have the vehicle diagnosed by qualified technicians to address any underlying problems.

Can I drive my car if it says check emission system?

Some common issues that trigger the warning light include a loose gas cap, a clogged air filter, a bad catalytic converter, a failing oxygen sensor, and other faulty engine sensors. You can still drive with an illuminated check emission light, but it’s not recommended as it could lead to engine damage.

How do I fix my emission control system needs to be checked?

Depending on the problem, possible solutions may include replacing damaged components such as the oxygen sensor, catalytic converter, or a vacuum hose. Leaking connections or damaged wiring may also be repaired or replaced to ensure the emission control system is working well.

How much does it cost to fix an emission control system?

If your vehicle failed emission testing and it needs repairing, then the cost will depend on the exact cause, but the repair work typically starts around $200. Replacing your exhaust system depends on the type of car you drive, but that work starts at approximately $175.

What is the emission control system warning light on a Subaru?

Common Symptoms of Subaru Emission System Issues
Illuminated Check Engine Light: One of the first indications of a potential emission system issue is an illuminated check engine light on your Subaru’s dashboard. While the check engine light can signal various problems, it often relates to emission-related issues.

What does it mean when my emission system warning light comes on?

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 do I get rid of emission light?

If you don’t have a scanner, take the car to an auto parts store and let them reset it for you. Note that if the cause of the indicator lamp is still present, the lamp will lite up again. You can reset using a code reader or removing the battery terminals , Unless you fix the fault the light will come on again .

Is check emissions light serious?

Depending on your car’s make and model, a solid yellow or orange light may indicate lower severity. However, it’s still a sign that you should make an appointment to diagnose and fix the problem. A flashing check engine light means you should take in your car ASAP.

Is emission system serious?

It is not good when there is an emissions problem or exhaust system failure. It can cause performance issues in your engine, potentially leading to costly internal damage. It’s also bad for you and the environment when harmful fumes and carbon monoxide are getting out more than they should.

How do I reset my emissions light?

Turning the Ignition On and Off
The on-off method is the equivalent fix for a vehicle’s check engine light. It forces the computer to refresh its saved state through a reboot. Simply place your key into the ignition and turn it on for 1-2 seconds, then turn it off for 1-2 seconds. Repeat this step three or four times.

How do I clear my emissions check?

Plug an OBD-II scanner into your vehicle’s OBD port and reset it to clear the check engine light. Disconnecting and reconnecting your battery will restart your vehicle’s computer and clear the light. Drive an older vehicle around for a few days after repairs. The light will go off on its own once the computer resets.