I just changed my Pcv system on my 97 850 T-5 and added a intake manifold spacer and when I put the car together this happens when I try to turn on the car, any ideas on what I did wrong?

 

Could be a big vacuum leak.

 

Torn hose, loose hose clamps, etc.

 

Check to make sure the manifold is properly tightened down. I had a torn manifold gasket that caused a simlar issue. ALso check to make sure you are getting a good supply of fuel.

 

How do I check to see if it has a good fuel supply?

 

One way is to take the end cap off the fuel rail and see if you have good fuel pressure. Press in on the end of the valve (looks like a tire air stem valve) and you should get a good squirt of fuel when you press in on it if there is ample pressure.

 

Did you reconnect your mass flow sensor?