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In the winter the ambient temperature is low enough that the OBD doesn't run the diagnostic to set the codes. Its' nothing to be concerered about, with 2 exceptions:
1 Your state of residence requires emissions testing
2 With the MIL on continiously, ou will be unable to tell if other unrelated problems arise.
This code sets if the canister purge valve malfuntions, canistor,or the lines are leaking, or the Fuel tank pressure or canister switching valves, fail during self-diagnostic testing. I doubt if it's a gas cap problem.
The canister, and its valves, are located behind the rear axle, the purge valve is under the hood.
I haven't been able to get it working correctly on mine. And I'm an engineer. The Canister and valves are expensive, so have a plan before you have someone replace components willy-nilly. Because the codes will not comeback for a half a week, if it hasn't been repaired correctly. [drive cycles]- long after your check has cleared that you gave the garage.
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