Wash hands with soap and water.
Scrub the avocado, pineapple, and lime with a clean vegetable brush under running water. Gently rub the cilantro under cool running water and dry on a clean towel. Dice the avocado and pineapple, cut the lime in half, and chop the cilantro.
In a medium bowl, combine the avocado, pineapple, cilantro, lime juice, olive oil and salt. Mix well and set aside.
Heat a grill or grill pan to medium. Lay the corn tortillas on the grill and grill on both sides until lightly charred, approximately 30 seconds per side. Remove from the heat and set aside.
Set the sausages on the grill and heat according to package directions. Once fully cooked, slice the sausages.
Assemble the tacos by layering the grilled tortillas with the sliced sausage and avocado pineapple salsa. Serve immediately.