Circuit/System Testing
IMPORTANT:
Circuit/System Verification must be performed before proceeding.
- Start the engine.
- Seal the EVAP system using the Purge/Seal function with a scan tool.
- Observe the FTP sensor with a scan tool.
- If the Fuel Tank Pressure Sensor parameter is less than 1.7 volts, replace the EVAP canister purge solenoid valve.