Car has very rough idle & burnt smell
The car was purchased in May with check engine light on. Codes read EVAP system and camshaft position sensor. The car would stop accelerating randomly on the highway. The car shop's mechanic said the EVAP system code wasnt there but they would fix the camshaft sensor. After 3x of not fixing the issue, they said it was a coil. Long story short, the mechanic took out the lightbulb to the "service engine soon" so I would think the coil was fixed. About a week later the car started shaking pretty bad (a/c made it worse). Got the codes checked & we had p0014, C0237 & p0420. We replaced the sensor once again, changed the camshaft VVT & all spark plugs. Now the car is shaking worse but now with a bad burnt smell. Like plastic or rubber but I dont see smoke so far. Also, now when I try to check the codes it says connection error. So I cant even find out whats going on.
Btw, sorry if I'm not explaining correctly. I'm a lady & just going off of experience & what I've been told.
Questa è una buona domanda?