Dodge Daytona

I am working on a friends 1990 Dodge Daytona. 57589 KMs, and I think it is a 3 l. V 6. When I was checking the wires to the battery, one was unhooked the car would not turn over and some other stuff would not work. As soon as I hooked that wire to the battery. The car would turn over, but the injectors were filling the cylinders with fuel. I had to pull all the spark plugs and turn it over to get the fuel out. If you have ever heard of anything like this please get back to me at msn acc. Mlj151@hotmail. Com thank you.
March 20, 2007.

Have you checked the fuel pressure regulator?