I'm having a problem starting after the truck has been sitting for a few days (3 or 4). If I run the truck every day there's no problem. I can here the in tank pumps spinning. I have the Hayne's manual and checked the computer for codes. So far I have replaced the EVP sensor (which was definitely bad). The other codes point to the O2 sensor, but the O2 sensor should not have any effect unitl the motor warms up. A friend said it could be the TPS because it won't always show codes on the computer. So I guess that's Saturday's project. Any help or suggestions would be appreciated. Thanks