the test does not run all the time so several days may pass till next test.
Check the purge valve for sealing, you can use a vac gauge on EVAP side of valve.
My thoughts -
Sometimes overfilling fuel tank after click off will degrade screen and allow carbon to obstruct purge seating... could remove valve and look for evidence. A scanner could be used to command system on and observe TPS (tank Sensor) change while vac cking at purge, confirm it will close and open vacuum.
Maybe check the canister to purge vac line at the canister for particles before replacing.
definitely remove and check purge new is not a guaranty of good esp if aftermarket.
Professional thinking is refuel @ 1/8 minimum with 1/4 being the goal.
purge valve on there and cleaned all hoses just cause....got oil changed, and tune up today so i pretty confident that the light will not come back on for the same code...
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