95 Accord EX. Started Engine. died after 5 seconds. HELP ASAP!!

Started car. Died 5 seconds after started. At first thought it would be timing belt. And in that case i might as well buy whole new engine because its a interference engine. I checked timing belt for slippage or break. Timing belt is good. Checked fuel pump and its pumping fuel. Cam shaft is turning. Checked a FEW computer areas and its working. Im completly at a loss for what it could be. Battery is good. This is DEFFINITLY NOT A SMALL PROBLEM. ANY IDEAS TO WHAT IT COULD BE OR ANY HELP AT ALL IS GREATLY APPRECIATED!!!!

4 Cyl VTECH Engine.

Only other info is that timing belt is 7000 miles overdue . But like i said i checked it and its fine.

Thanks for all your help all you HONDA NUTS!!!!! .....

~Matt