i have a 0bd code po442

that is an evap issue and at times very hard to diag i rec you see a qualified shop and ahve it diag properly

Tests/Procedures: 1. With the engine running, ground the White/Dark Green wire, at the Leak Detection Pump (LDP), with the connector plugged in to close the vent in the LDP. 2. Unplug the vacuum supply hose at the purge solenoid and cap the hose. 3. Disconnect the electrical connector from the purge solenoid. 4. Connect a smoke machine to check for leaks. 4. The most likely leak area on this vehicle is the rubber hose ends at the evaporative canister. The ends crack. Repair or replace the hoses as needed.