Gas cap thread help

[Zonerman]

A month or so ago I saw a thread about an AC Delco solenoid and harness that cures the gas cap message that shows up on the DIC. Problem is I don't remember where the thread was so I can't order the parts. My GT2 has emissions due in April. Any help is appreciated. Thanks.

[Scottydoggs]

what code you getting, theres like 15 evap codes that could be popping up.

[Zonerman]

P0442 and P0455

[Scottydoggs]

both leak codes, large and small leak. my guess is a busted evap line somewhere. either off the engine or off the canister tank, maybe even the vent tube is rusted next to the gas filler neck as it leads under the car. this one is easy to see from under the filler door.