check engine, traction control and avs light are on. avs is flashing
took it to a dealer, they did a diagnostic test, said it was a tune up and fuel injectors were dirty. 468 bucks later, the light came back on two days later, check engine stays on, the traction control stays on, the avs light flashes. took it back, 6 hours they ran every test could not find anything wrong with my car, told me to come get it, the lights waited another day to come back on. is there a sensor somewhere they are missing? i passed emissions in july 2019, so i am befuddled as to what the problem is. any suggestions?