evap. emissions sys.detectes a small leak code:p0442 on 1997 BMW 328iC

car runs totally perfecthas 97000.how do i find this smal leak? and get ur done. need a smog check.only so many parts ,charcoal canister,purge valve,leak detect conrol,

by in Tucson, AZ on March 26, 2012
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1 answer 1 comment
ANSWER by , March 26, 2012
Best way is to go to a shop and have them do a 'smoke test' this will quickly locate the source of the leak.
COMMENT by , March 27, 2012
OR POSSIBLY A SOLENOID HANGING OPEN, BUT YES START WITH A SMOKE TEST. ALSO CK GAS CAP FOR A CRACKED O-RING