How do you fix it check engine light code P0442?

Answer 1

code PO442 Evap sys leak There could bethe gas cap or a crack in the plastic of your charcoal canister. A hose could be pulled off, or broken, or split, or removed by a mechanic and never put back on. The pressure sender could be broken and never signalling the ECU. The solenoid could be broken and never performing the EVAP purge. Any of the wires to the solenoid or the sensor could be broken, shorted, or unhooked. they make a smoke tester to find small leaks in evap system most dealers have them cost about$100 to diag hope this helps