If you are getting the “Emissions system problem, power may be reduced” warning in your Honda vehicle, this usually means there is a problem with the EVAP system. This is the system that is responsible for gas tank “breathing”. Unfortunately, in a lot of modern Honda vehicles this system is pretty faulty.
Also, the new capless fuel tank systems may be in charge of this message, especially if you see it when the car barely has several thousand miles on it.
In this article, I will cover all known and verified reasons that can trigger this issue and warning on the dash of your car. I will cover both high-mileage and low-mileage problems and will focus on the ways to solve the issue and get rid of the warning in your car. I hope, this information helps you solve the problem with minimal cost.