Enable/Disable Conditions

All of the following conditions must be met before the PCM will enable the [1][2]EVAP solenoid. Once enabled, failure to meet any of these conditions will cause the PCM to disable the EVAP solenoid.
1. PCM fuel control must be in closed loop operation and commanded Air/Fuel ratio must be 14.7 to 1 for a certain period of time before the [1][2]EVAP solenoid will be enabled. This delay will ensure that the engine is sufficiently warmed up and ready. The delay period is based on engine coolant temperature (ECT) at engine start-up.
2. Fuel is not being disabled to any cylinder due to traction control system operation or acceleration reduction fuel control.
3. The PCM determines that no engine over temperature condition exists. The [1][2]EVAP solenoid will not be enabled it an overtemperature condition exists in order to help reduce engine temperature.
4. Vehicle speed is present and MAF sensor input is at least 16.0 grams per second or Engine running for at least 17 minutes.