Carrier/rack problems of the 2013 Chevrolet Sonic

Code 84 while driving on regular road at normal speed. Car goes into power reduction mode. It's difficult to accelerate and the "see mechanic" symbol on the dash. Took it to midas, had the pedal assembly replaced and electrical wires greased. Next week same thing, replaced pedal assembly again. Same thing happened again today. Driving in nice weather going under 45mph. Stabilitrack light comes on and power reduction turns on. Turn car off, sit a minute, turn back on, check engine light and power reduction off. Will happen again. Every day for the last 3 weeks after about a year ago having pedal assembly replaced. Code 84 came on again today, took to the mechanic, they say everything is running fine with the diagnostic reading. Not sure why the power reduction comes on. I have tried driving with traction control off, tc off and stabilitrack off. New tires, new brakes, new windshield (replaced when I bought the car in case there was an internal leak. No water intrusion was found by the mechanics. I cannot drive the car safely on the busy road I work on. Car will go into power reduction at random even when on the highway, causing the car to lose ability to accelerate fast enough to not get hit. Always while driving. Sometimes the check engine light stays on and sometimes it's not on at all. Intermittent power reduction. Mechanics say could be an electrical issue but couldn't find the source of the problem. This has been happening on and off for over a year and no solution has been found. All regular maintenance is scheduled in a timely fashion. Unknown cause of safety issue.

-engine valve oil leak -engine valve cover had to be replaced due to a crack -oil pan leak -hoses fell apart while on highway (495) causing all refrigerant to leak out and cause a/c to blow warm air -all coolant leaked out due to faulty thermometer housing & gasket causing the heat to blow out cold air. No check engine light or engine temperature light was displayed despite the fact that there was no coolant in the resovoire -side mirrors stopped adjusting due to faulty switch -driver side heated seat had a shortage due to faulty seat cushion this vehicle only has 65,000 miles on it and has had to be practically rebuilt due to cheap/faulty parts. Leaking coolant can cause the engine to overheat.

Rough idle at stop and sluggish propulsion while driving to where it can become dangerous while merging onto freeway traffic and busy city streets. Upon further investigation on online forums, there is a mass issue with the air intake tube/hose from air box to throttle body. The issue being major cracking or holes in the tube/hose causing too much airflow. This cracking happens sometimes before or after the O2 sensor. The cracking I found happened to be after my O2 sensor, therefore not even triggering the check engine system to activate.