How much it cost to fix a evap control system leak?

The cost to fix an evaporative (evap) control system leak can vary widely based on the vehicle make and model, as well as the specific issue causing the leak. On average, repairs can range from $150 to $600, depending on whether it's a simple hose replacement or a more complex issue like a faulty vapor canister or purge valve. Labor costs may also influence the total price, so it's advisable to get a detailed estimate from a qualified mechanic.