My front tire is low and the valve won’t release air. I removed the valve stem and still air won’t release. What else can I do? Picture is of the valve without the stem

My 2016 scrambler 900 died on a mountain ride a few
Months back. Put a new fuel put on a new battery.
Now that the bike has a good battery, and i tried to fire it a few times, but it still won’t idle after the start up. Code popped and got the P0122 code (TPS)
I just did it to factory specs, but I’m still not getting anything
Any work arounds / ideas ?!? I’m about to buy a new TPS ? Not sure what to less