Neutral Safety Switch

I just replaced the safety switch in my Buick and the switch only costed me $30, but i installed it my self. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

2000 Buick Lesabre... when cold the car runs fine, after say five minutes it will not go as if in idle, but only after a stop. Wait 3 minutes and it goes. it always starts, just wont go in any gear after a stop light when warmed up. No code appears except for map air sensor. Was told Neutral saftey switch is prob. cause. What do you think ? Thank You

What is the exact code number you have not the code description.

Advance didn't really say, other than a mass air sensor because the car had another issue.
But this problem isn't giving a code at all. It just won't go after a stop, shut off engine 2-3 min
and it goes UNTIL a stop again so I just pull over knowing what will happen.
And where is NSS located if it's the fault, thank you, Saturntech9

If you follow your shifter cable it will lead you straight to the nss.Have you had your battery tested made sure your battery cables are clean and tight and had your alternator tested?Just to cover those bases?Also are sure there are no transmission codes?Is that mass air flow code active meaning does it coming back when its cleared?

Thankyou for follow up, so greatly appreciated. However, took it to a recommended trans repair shop and in my terms from them is hydraulics aren't working, metal in pan and they are doing a rebuild. Plus it did finally quit going at all and made a bad noise.
Cost for overhauling trans is better than junkyard bought and taking chances I guess

Yeah metal in the pan is never a good thing to see keep me posted on how it comes out.