in my last post i had prematurely determined that my gas cap was at fault, cel is back. this time i had the cap tested and it checked out ok. there is no change in driveability, gas mileage or any new noises. any help appreciated

Unfortunatly you need to have an EVAP system test with diag equiptment. You probably know that code is for a small EVAP leak. It could be any where in the EVAP system. :sunglasse