1994 Pontiac Grand Prix will start but won't run

Ok first some info ok. Did this exist before you replaced the column? Was the column from a wrecking or salvage yard? Did the column come with all the switches and if so did you use the switches on the column or put your old ones on it? Get back to me with as much as you can and we will go from there.

Ok first off why did you replace the column. I am thinking that maybe one of the switches like the ignition switch may be bad. So it would mean removing the column just replace the switch with the on from the old column thats all. I do not show an alarm system with imobilizer for you car but I will keep looking to make sure.

Sounds like the ignition switch is bad. So I guess it is warranty the column if there is a warranty or replace the ignition switch.

Ok so if I understand right you have wired the start to a push button already and now want to know how to get the power to everything that is needed when the key is on? If that is what you need then get back to me and I will look over the wiring diagram and see where the power goes so you can do just that.

Ok first of you need to have a test light or meter to make sure there isn't power already at any of these wires ok.
Orange wire hot when in run or on position only
Brown wire hot in run and accessory.
Pink wire hot in run or on position only
Red wire A and B hot when in off position
Yellow wire goes to fuse #11 hot in start.
Purple wire hot in run or on position
This is the ignition switch wiring and what they need for power.
Orange wire powers fuse #33
Brown wire powers fuse #38
Pink wire power fuse #16 which links to fuse 6 and then powers the power window circuit breaker.
Red A and B wires ignition number one fuse in the under hood electrical center and the other to ignition switch fuse number 2 in the under hood electrical center.
I hope this is what you were looking for and that it will help. Thanks