No, you cannot pass emissions with stored codes. CoPilot is built using the same technology that dealerships use to buy and sell their inventories, so we have more info on each vehicle than competitors. The built-in OBD-II system monitors are completed. If you have codes but no check engine light, its possible that the codes are from a previous problem that has since been fixed. Otherwise, the emission test will likely come back as failed. Step 3: Open the menu icon in the top right corner and choose the state you want to check. Web478K views 2 years ago i needed to complete a drive cycle for my wife's car in order to pass smog here in california. While this can vary based on a lot of things, there is a general number that you should drive the vehicle before you can see if the light will go away. AffiliateBanner += ': First I will idle 20 minutes, then drive at steady speed on freeway for 1/2 hour. Its important to note that some states require cars to pass an emissions test before they can be registered. In this case, reset the engine and see if the same error comes up again. However, most states require that cars be tested every one to two years. The steps are easy to follow: Step 1: Connect to the OBDLink app on your phone. Keep your car properly maintained by doing all of the scheduled maintenance in a timely manner. I recently relocated my 2004 Toyota Camry from California to Nevada. Note: Read your fuel additive's instructions regarding having your vehicle smog tested while using the additive.