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Home >> GMC >> 1998 >> Forward Control 4.3 W, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 4.3L >> Diagnostic Trouble Codes >> DTC P0440 - EVAP System >> Circuit Description

Circuit Description

Evaporative (EVAP) emission system includes following components: fuel tank, EVAP vent solenoid, fuel tank pressure sensor, fuel pipes and hoses, vapor lines, fuel cap, EVAP emission canister, purge lines, and EVAP purge solenoid.

Conditions for setting DTC: