Q: What is the evaporative emissions control system?

asked by on

What is the evaporative emissions control system?

Gasoline evaporates, even in the gas tank of your Accord. If those fumes are allowed to escape into the atmosphere, they create hydrocarbons that damage the environment and also contribute to smog/air pollution. To help combat this problem, your car uses an evaporative emissions control system. Basically, there’s a charcoal canister in the fuel system that absorbs fuel vapor. If you’re not driving, it just stores the vapors. Once you start driving, the vapors are sent to the engine where they’re burned (also increasing fuel mileage).

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. What is the evaporative emissions control system?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: P0171 and P0170

Hello and thanks for writing in. Code P0170 relates to the computer detecting a fuel trim that is outside of a specified range which could mean that it is either running excessively rich or lean depending on the circumstances. Code...

Q: Backfiring after the engine is revved up.

Hi there. It is normal for an engine to backfire when revved up and the throttle is let off, especially if the muffler is small and the exhaust is loud. Now, if the engine is backfiring while the engine is...

Q: What fuel should I use on my car?

The ideal fuel for your vehicle is unleaded gasoline that has an octane rating of at least 87.

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.