Engine Knocking Noise problems of the 2016 Kia Motor Optima

I am starting to experience engine trouble with my 2016 kia Optima. I purchased the vehicle new with 0 miles. My issue stated on Friday evening, September 27th when the check engine light came on. Immediately, I took the vehicle to the dealership Saturday morning, September 28th. The tech person at kia country of savannah hook the computer device to find the issue. He stated it was due to air flow sensor. I advised him I would be traveling to port canaveral, FL in the early morning for a cruise. He said the vehicle would be fine and I would lose a mile or two on fuel economy. Wth! he disengaged the engine warning signal then says "if it come back on, you will be okay. " well, the next morning, I drove my car to orlando for an overnight stay then on to port canaveral the following Monday. Of course, I drove around orlando area. The check engine come on, again, then went off on its own. Here is where things really went downhill. I made it back to savannah during a bad thunderstorm. The car started to stutter like it was about to shut off. I managed to get the car home and parked it until Monday morning. Upon driving to the dealership, I lost all acceleration power and coast for about an half mile to the service center. By this time, I am about to explode with anger. My car has been in the shop since Monday morning, I am driving a rental car paid by the dealership. Finally, yesterday, I was told the issue was the wiring harness that was covered by a recall. I brought the car in them months ago about some knocking noises that I heard. Only to be told, I was hearing things. After reading reviews, I am concerned that issue is going to grow into a major one. The car has only 36,000 miles.

I just bought this car a month ago and have not been able to work in it as a lyft driver because there is always something wrong with it it's been in the shop more than I've drove it it makes a knocking noise and I'm not safe in the vehicle I did a history check on it and come to find out their are a bunch of recalls on it can anyone help me please?I was driving on a city street and highways.

Tl the contact owns a 2016 kia Optima. The contact stated that the engine made an abnormal knocking sound and the vehicle stalled. In addition, the check engine indicator illuminated. The failures occurred without warning. On four occasions, the vehicle was towed and driven to sunset kia of venice (179 u. S. 41 bypass, venice, FL 34285) where it was diagnosed that a new wiring harness for the knock sensors was needed along with a new engine. The vehicle was repaired, but the failures recurred. The manufacturer was made aware of the failures and not assist. The failure mileage was 62,000. The VIN was unknown.