my truck got flooded while running. i have changed all the filters, oil, etc.,

It's hard to even guess what is wrong without being able to do some basic diagnostic tests. attaching a professional grade scan tool to the computer of your car would allow live data to be read off the scan tool without having to do intrusive testing at each sensor. It would be interesting to see what the computer sees as being the air and coolant temperature in your car under starting conditions and fuel injector pulse width is to see if the sensors are giving correct readings and if the computer is reacting correctly to enrich the mixture on start up. Have you checked for vacuum leaks. Autozone have some popular workshop manuals for free on line once you register (for free) on their website http://bit.ly/autozone_repair_info. There is a company that independent auto repair shops get their information from, this same information is available inexpensively for people that work on their own cars.. The information is year make and model specific, covering repair procedures, torque specifications, fluid capacities and specifications, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate http://bit.ly/AllData_Repair_Manuals_Online