I would start by doing a thorough inspection of the canister vent valve and wiring that sits above the spare tire. This area is susceptible to corrosion and moisture. I usually disconnect the connector and have a look at the pins to make sure they are clean and clear. With the key on one of the pins should have twelve volts and the other will only ground when the PCM commands it.
Monday, July 27th, 2020 AT 2:16 PM