An EVAP system prevents fuel vapors from escaping into the atmosphere

Fuel vapors are absorbed by the carbon adsorber

The adsorber is installed in the engine compartment and is connected by pipelines to the fuel tank and the purge solenoid valve

Removing and installing evaporative emission system components on a Mazda 6 Mazda 6Removing and installing elements of the Mazda 6 vapor recovery system

The canister purge solenoid valve installed on the air supply hose switches the system operation modes based on signals from the engine control unit.

Fuel vapors from the fuel tank are constantly discharged through the pipeline and accumulate in the adsorber filled with activated carbon (adsorbent)

When the engine is running, the adsorbent is periodically regenerated (recovered) by blowing the adsorber with fresh air from the atmosphere

Air enters the system under the action of vacuum transmitted through the pipeline from the intake manifold to the adsorber cavity when the purge valve installed in the pipeline is opened

The electronic engine control unit regulates the intensity of the adsorber purge depending on the engine operating mode, supplying a signal to the valve with a variable pulse frequency.

Fuel vapors from the canister through the pipeline enter the engine intake manifold and burn in the cylinders.

Failures in the evaporative emission system lead to unstable idling up to engine shutdown, increased toxicity of exhaust gases and deterioration in driving performance of the car.

Replacing the canister of the fuel vapor recovery system

The evaporative emission system canister is removed for inspection or replacement when a persistent smell of gasoline occurs due to canister leaks.

In addition, a violation of the tightness of the adsorber can cause unstable operation of the engine at idle until it stops.

Removing and installing evaporative emission system components on a vehicle Mazda 6Removing and installing elements of the Mazda 6 vapor recovery system

Loosen the fastening clamp and slide the clamp along the hose

Disconnect the fuel tank vent pipe from the adsorber

Removing and installing evaporative emission system components on a Mazda 6 Mazda 6Removing and installing elements of the Mazda 6 vapor recovery system

We also disconnect the other two pipelines from the adsorber

Removing and installing evaporative emission system components on a Mazda 6 Mazda 6

We unscrew the two nuts securing the adsorber to the body and remove the adsorber

Install the adsorber in reverse order

Removing the canister purge valve

Disconnect the negative battery terminal

Removing and installing the evaporative emission system components of a vehicle Mazda 6Removing and installing elements of the Mazda 6 vapor recovery system

We loosen the fastening clamp and remove the pipeline connecting the valve with the adsorber from the valve fitting

Removing and installing evaporative emission system components on a Mazda 6 Mazda 6Removing and installing parts of the Mazda 6 vapor recovery system

We also remove the pipeline connecting the valve to the intake manifold

Removing and installing evaporative emission system components on a Mazda 6 Mazda 6

Press the lock of the wire block and disconnect it from the contacts of the canister purge valve connector

Removing and installing evaporative emission system components on a Mazda 6 Mazda 6Removing and installing parts of the Mazda 6 vapor recovery system

Pull up the canister purge valve and remove it from the air supply hose

Removing and installing the evaporative emission system components of a vehicle Mazda 6

When replacing the adsorber, pay attention to its marking

Install the canister purge valve in reverse order