Car was driving and shifting fine for 2hrs then I came to a stop and when I took off again it would only go 20mph and revved up to 3500rpms and would not shift. Also throwing codes P0234 turbocharger/supercharger "A" Overboost condition and a coolant thermostats sensor P0128
36.2k questions
32.2k answers
1.3k comments
22.8k users