[010175]

I have a 1999 GMC with 280,000 miles. No engine light on. I was going down the freeway and the engine light flashed 5 times and the engine quit. Left 4 ways on and the battery went dead. Towed home. Checked code and it was p0304. Because the battery was dead for a few days I don't know if it's from back then or just now with me trying to start it. The fuel presser is good and it holds presser. The engine try's to start I think. It stumbles and simi locks like it's trying to fire but not enought to keep it turning. fuse's look good, the ones I know of. Any ideas? I am a shade tree guy and don't mind throwing a few parts in it on the guest. Thanks Dave