Gto n/a automatic starting issue

Hi guys , car will not start in park only starts in neutral,! Any ideas what this could be

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Neutral safety switch or apparently, if you have an aftermarket air filter fitted, one of the brackets can get in the way and prevent it going into park properly.

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I would ask how OP knew he/she could get it started in neutral. That’s very good!

That’s a quick-check for many mechanics, in a no start condition move the gearshift to neutral and if it starts, that proves everything after the PRNDL (neutral safety) is good. The wires connecting it to the computer are good, the computer is good, etc. Everything is good because it started and is working.

Then you pop it back in park and it won’t work, well you know everything after the PRNDL is good, because it just ran. Go back and forth between the two and if it’s consistent, 100% won’t start in P but does in N, there’s your problem.
If it varied, like sometimes it does, sometimes it doesn’t there may be critter damage or rubbed wires.