Dutter

So one day as i pulled into my drive way my truck ran rough and then just died. So i ran it the next day and it did not do its high rev when its cold like normal. But i drove it and once the temp got to normal and i let off the gas it would die. and i have done my homework and tested everything that came up with not luck iv checked the temp sensor, O2, Cat, plugs, injectors, distributor, MAS, main computer, coil and the chip on top of it. Plus i have no vac leaks or leaks in the intake nor a blown head gasket. any other ideas this truck has really stumped me