Smog Test Inspection Failed
Smog Test Failed Failed Smog Test Now What To Do? Easy step by step instructions on how to correct a vehicle that has failed smog, this information pertains to most vehicles. Difficulty Scale: 4 of 10 Step 1 - One of the most common causes of a failed smog test is the check engine light is "ON" while the engine is running. Learn more Check Engine Light Step 2 - The catalytic converter is a vital part of the emission control system, when this item starts to fail it will allow high emissions. (Note: A new cat can overcome a worn or mal-performing engine.) Learn more Catalytic Converter Replacement Step 3 - A misfiring engine causes excessive emissions to be produced, correcting this problem will help pass a smog inspection. Learn more Fouled Spark Plug Step 4 - Engine tune up's are needed to keep the engine running efficiently and is a required service on all internal combustion vehicles. Learn more Engine Tune Up S...