CT Emissions logo
Hours for motorist hotline: Mon-Sat, 8am-6pm
Motorist hotline: 1-888-828-8399
General Information
General Information
General Information
General Information
General Information
General Information
General Information
Updates
FAQs
FAQs
Publications
Updates
Station Inspector
 
HomeDMVContact UsSitemap

Connecticut Emissions Program
Icon - What Should I know About the Test Heading - What Should I Know About the Test
General Testing Info | Test Procedures

 

General Testing Info

  

What Should I Do When the “Check Engine” Or “Service Engine Soon” Or Malfunction Indicator Lamp (MIL) Is On?

  

If your vehicle’s Malfunction Indicator Lamp (MIL) stays on while the engine is running,  it’s an indication that the On Board Diagnostic system has detected an emissions problem that has the potential to make your vehicle emit excess emission levels.  If your vehicle’s Malfunction Indicator Lamp (MIL) is blinking or flashing, this is an indication that the vehicle has a serious problem and needs immediate service or major damage could occur to expensive emission related components.

  

Your vehicle will FAIL its emissions test if the Malfunction Indicator Lamp (MIL) is lit when tested.  To avoid this, it is suggested that you have your vehicle’s OBDII system diagnosed by a qualified mechanic prior to having it emission inspected.

 

  

Vehicle emissions testing is the State's most effective way to improve air quality.


How can we improve this website? Please send us feedback!
Privacy Policy | Accessibility | Copyright © 2003 Applus+ Technologies.