DTC Parameters

• Engine is running.
• EVAP vent solenoid is commanded on (closed).
• EVAP purge solenoid is commended off (closed).
• Fuel tank level is 15-85 percent full.
• BARO is greater than 81 kPa.
• ECT and IAT at engine start-up are 41-90°F (5-32°C).
• ECT and IAT are within 18°F of each other.
• Ignition voltage is 11-18 volts.
• No ECT, fuel tank pressure, IAT, MAP or vehicle speed DTCs are set.

DTC sets when fuel tank pressure sensor is indicating to PCM that 6 in. H2O or more is being pulled in EVAP system during EVAP diagnostic system test.

DTC diagnostic runs once per ignition cycle for a maximum of 96 seconds during the EVAP diagnostic system test.