e vap

Evap codes are often hard to trace unless the leak is big. Many automotive repair shops have a machine that generates an inert non flammable low pressure smoke that looks similar to cigar smoke. Small leaks need to be tested by using a "smoke machine" to locate the source of a leak. Purge valve, canister vent valves, the canister itself and all the plumbing of these parts need to be checked. All you can really do your self is see that al hoses are connected.