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 required to set DTC are:

• No IAT, MAP, ODM, or TP sensor DTCs set.
• Start-up ECT is 40-86°F (4-30°C).
• Start-up ECT is not greater than 14°F (8°C), but greater than start-up IAT.
• Start-up IAT is 40-86°F (4-30°C).
• Start-up IAT is not greater than 4°F (2°C), but greater than start-up ECT.
• Fuel tank level 15-85 percent.
• BARO greater than 75 kPa.
• Fuel tank pressure NOT -1.5 to 1.5 in. H2O when ignition is turned on.
• Or Conditions present for 30 seconds.