What is an EVAP leak in your car and how to diagnose it?

This system is responsible for protecting the environment from the unpleasant things that the car produces.

Knowing that your car is in the best possible condition is extremely important to feel confident and ensure that you arrive at your destination without any problems.

Cars work thanks to many elements and each one has a high degree of importance. The evaporative emission control system (EVAP) is a very important system and must always be in optimal conditions.

What is an EVAP system?

EVAP is designed to monitor the fuel gases present in the gas tank. As with exhaust gas monitoring, the OBD2 standard requires strict control of the gases contained in the fuel tank so that when it is released into the atmosphere, hydrocarbon pollution is minimal.

In a nutshell, the EVAP system is linked to your vehicle's emission control systems and is responsible for protecting the environment from the nasty substances your vehicle produces.

So if there is a leak, your car won't catch fire, but it's still a problem that shouldn't be ignored.

How to diagnose an EVAP leak in a car?

The main indicator that accompanies an EVAP leak is the check engine light. You may notice a faint smell of fuel, but the problem manifests itself differently on different vehicles. A common problem is a loose gas cap, which on new vehicles can cause the check engine light to come on as the ECU detects a problem with the EVAP system. If you see the check engine light and haven't refueled recently, it's a good idea to use a code reader or take your car to a shop for diagnostics.

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