- Turn the Instant Pot to the saute setting and drizzle olive oil in the bottom. Pat the chicken dry with paper towels and seasn both sides of the thighs with salt and pepper. When the oil is hot, place the chicken thighs smooth side down and sear on both sides for 3-4 minutes. It shouldn't be cooked all the way through. Remove the chicken to a cutting board or plate. 
- Drizzle a little more olive oil in the bottom then add the onion, celery, and carrots and cook for 3-5 minutes or until soft and translucent. Add the minced garlic and saute for another 1-2 minutes until the garlic is fragrant. 
- Press cancel to stop the saute setting then add the rest of the ingredients, except for the noodles, too the instant pot. Place the chicken thighs back in the broth, making sure they're fully submerged. Close the lid and make sure the valve is set to the sealing position. 
- Press pressure (manual) cook on high pressure for 8 minutes. Cook for 10 minutes if you're using bone-in chicken thighs. It will take about 10 minutes for the Instant Pot to come to pressure then will start counting down. Natural release (do nothing) for 5 minutes then turn the valve from sealing to venting to release the remaining pressure.  
- Carefully remove the cooked chicken to a clean cutting board and turn the soup back to the saute setting to bring it to a boil. While it's heating, shred the chicken with two forks. You could also cut it into bite-sized pieces.  
- Add the uncooked pasta to the soup when it begins to boil and cook the noodles for 5-7 minutes, or until the pasta is al dente. Double-check the package directions for exact timing. The noodles will continue to cook in the soup so be careful not to overcook them. Stir in the shredded chicken and parsley. Serve right away with more fresh parsley, thyme, and fresh black pepper