So, this code comes on when there is high resistance in the circuit, I would remove the connectors from the valve and the PCM to inspect the terminals for corrosion. Also here are the wiring diagrams for the EVAP system and a guide to help you do the tests.
https://www.2carpros.com/articles/how-to-check-wiring
Also, even though the valve tested good I would replace it anyway if you can't find a connection problem. Check out the images (below). Please let us know what you find. We are interested to see what it is.
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Friday, September 9th, 2022 AT 12:06 PM