The reason I am doing this is we think the injectors are leaking, causing the truck to stumble on warm startups. The way it was explained to me is when I stop my truck it keeps dripping gas intot he cylender for a little while, then when I go to start it 10 mins later the O2 sensors read that the mixture is very rich and lean out the injectors, thus causing the truck to not get enough fuel to run smoothly. once the gas that was in the cylenders burn up and the O2 sensors read a normal reading again, they begin to make the mixture richer again. If i start it and peg the gas it almost immediatly stops the rough idle because it gives the engine a chance to quickly burn the fuel.
New injectors should fix it hopefully!