DTC p0442 EVAP slow leak on 2008 Chevrolet Equinox

Hooked scanner up found code p0442 EVAP slow leak. inspected all lines and canaster found no problems replaced gas cap reset codes. two days came back on.

Asked by for the 2008 Chevrolet Equinox
2 answers
SMOKE TEST. SEE REPAIR SHOP.
seek diag and est from a good mech that has smoke mach and able to ck circuits