I just had the Check Engine Light come on for the first time ever so I took it to a local Autozone for help reading the code. It read "P0456" and the parts guy (who had been drinking that day) said it had something to do with the EVAP system and might be as simple as a bad...
2001 Dodge Grand Caravan, 3.3L V6 with aprox 97K miles, check engine light is on again for the fourth time in less than 2 months. The first time the codes were 1684 & P0456, we changed the gas cap to a new one and had the codes reset. ...