So I came home from work yesterday and parked my 99 Intrepid with 2.7L. I then had to go back out an hour later and try to go, but no luck.

Well the car starts, but as soon as I touch the gas, it stalls. I turn it off and try again and same thing. It will idle, but nothing more than that. I checked the codes by turning the key and got:
PO123
P0122
P0106
P123
P0405

So basically it is saying that the proper voltage is not getting to the TPS, EGR and MAP sensors.

I tried swapping the TPS from my parts car, also a 98 with 2.7, and no luck. Then I swapped the computer, and still the same thing. It idles but that is it.
Also brought a new Map sensor
Has anyone run into this problem before? Any suggestions