Replacing the gas cap.Replacing the fuel tank.Replacing the charcoal canister.Replacing the EVAP system lines.Replacing the purge or vent valves.

How do you fix P0442 Evaporative emission control system leak detected small leak?

If you see a P0442 evaporative emission system leak detected code, you may be able to resolve the problem without much effort. The easiest solution may be to remove and reaffix the gas cap. Once you do, clear the code on the OBD-II diagnostic scanner and drive for a few days.

How much does it cost to fix P0442?

However, there are cases where small leaks develop in the filler neck or even the gas tanks (the metal ones), which will bring repair costs up to the $500–$600 dollar range.