Causes of the “Check Emission System” Warning Light
Some of the potential causes include: Faulty oxygen sensor. Malfunctioning catalytic converter. Loose or damaged gas cap.
Causes of the “Check Emission System” Warning LightFaulty oxygen sensorMalfunctioning catalytic converterLoose or damaged gas capDamaged vacuum hose What is the “Check Emission Causes of the “Check Diagnosing the Issue
The oxygen sensor, catalytic converter, and evaporative emission system are some of the key components you should examine for any visible damage or signs of malfunction.
The check emission system means that one of your vehicle’s emission control systems is
not working properly. This could be caused by a number of things, such as a faulty oxygen sensor, catalytic converter, or the ERG valve.The
Check Emission System warning light on a car is an indication that there is an issue with this system. When the Check Emission System warning light illuminates, it usually indicates a fault with one of the system’s components, or that there’s an outside influence that’s causing emissions to be outside of normal parameters.To address a check engine light issue, you or your mechanic can retrieve the codes by using an
OBD-II scanner and then troubleshooting to find the problem. If your light is on, it typically means the car's emissions control system is faulty, and the vehicle is polluting the air beyond allowable federal standards.
How To Fix Emission System Problem
- Examine the air filter on the air cleaner system.
- Check the Positive Crankcase Ventilation (PCV) system.
Check Emission System Message Fixes
- 1. Inspect/Replace Gas Cap The easiest solution is to take a peek at your gas cap. ...
- 2. Check Trouble Codes If the gas cap isn’t to blame, it’s time to scan the engine for codes. ...