Evaporative Emissions - Overview

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Overview

The EVAP system prevents hydrocarbon emissions from entering the atmosphere by storing fuel vapors and routing the vapors to the engine to be consumed during normal engine operation.

The EVAP system consists of:

EVAP canister
EVAP canister purge valve
Fuel Tank Pressure (FTP) sensor and tube
Easy Fuel™ (capless) fuel tank filler pipe
Fuel vapor vent valve (FVVV) / Refueling valve (RV)
Fuel tank isolation valve (FTIV) / Tank pressure control (TPC)
EVAP leak detection pump