Set your Instant Pot to saute and add the olive oil, chopped yellow onion, garlic and chopped green bell pepper. Saute until translucent.
Add to the Instant Pot the split peas, pork belly, smoked pork loin, chopped calabaza, salt, cumin, oregano, bay leaf, chicken bouillon cube and water.
Set the Instant Pot to Bean/Chili setting at high pressure and cook for 45 minutes.
Once done cooking, release the steam and carefully remove the lid. Give the soup a good stir. If the soup is too thick, add ½ cup warm water(or more) until you reach your desired consistency.
Serve immediately and garnish with cilantro.