fuel evaporative control repair on 1994 Ford Ranger

how do you repair a feul evaporativ conyrol until with out replaceing it

Asked by for the 1994 Ford Ranger
The evaporative emission control system has several components. It basically holds onto fuel vapors preventing them from entering the atmosphere. Is it the canister itself that is damaged the purge valve or purge lines that are damaged. On Board Diagnostics 2 monitors the system for leaks and will illuminate the check engine light if it detects a leak.