Upon the first gas tank filling of his "new" 03 Vibe Base, My son was barely able to add gas due to immediate gas nozzle shut-off! A second gas pump was no help. When he got home, he found a rusty 3/8" ratchet extension plugged into an EVAP. Line at the charcoal canister. After removing the obstruction, the gas tank now fills normally! He is waiting to see if the car will now throw a code related to the EVAP system.
Does anyone know what was being attempted/accomplished by plugging this line (vent line?)? Possibly a way to pass an emissions test?