about a year ago i had a cel p1441. i changed everything the solenoid, charcole canister, vacuum switch most of the vacuum lines any way the code p1441 came back a few days after i filled the tank first time in a long time i did that and no i did not over fill the tank when the pump cuts off i pull the nozzle out my question is when does the solenoid cycle i have plenty of vaccum going into the solenoid but cant get it to open i also read that there is a diagnostics port that if grounded the solenoid would open well i found a spade terminal just under the computer witch i assumed was the terminal and i grounded it nothing happened any help here guys

 

try a new gas cap?