1990 Dodge Daytona

Engine Mechanical problem
1990 Dodge Daytona 4 cyl Front Wheel Drive Automatic 150000 miles

I have a 1990 dodge daytona 2.5l w/ turbo. And I got it not running so far I have put a new head gasket on, used fuel pump in with 54 psi, used computer, new fuel filter, switched it with used injectors with manifalds, used trottle body positioner. And every time you turn the key it will run for 10 sec. And die and u have to reset the key and it will do the same thing otherwise it wont even ettemp to start. Can you tell me whats wrong?
July 23, 2010.

When you say reset the key, what are you doing? Are you resetting the factory alarm?