Sorry for screaming guys, I need some major help.

ok, I will try to make it simple, for me, not you.

My father has a 1994 850 volvo turbo.

car started running funny, then started only when I shifted from p-L fast a few times, Thought it could be PNP, the car was starting before but one day I took it out and came home, would never start after that,

So, I bought a new PNP, installed it, still no start, I know the PNP is in right because I can only start it in P and N, plugged it in ok,

so, still no start,

So, This is what has been checked and installed,

PNP NEW, Ignition Coil(used but was working)camshaft position sensor changed,
a few weeks before that changed the throttle position sensor,

Checked the plugs, they were changed a month ago but when I checked today, dirty and has fuel on them, I wiped them off, re installed them,

There is gas in car, fule pump working, Oh ya, I have a new fuel pump relay in too.
the last think I was thinking of was the cap, I probably have done more but cant think right now, this car is driving me nuts!!!

Any help would be GREATLY appreciated. Sorry for the bad spelling and grammer.

Bobby 850 turbo.