My genesis coupe has no boost it goes from -14 to zero on boost gauge no check engine light but code reader said underboost condition that code is gone replaced boost sensor .still has code POP122 and PO222 . is this my throttle pedal itself or the sensor on the throttle body ? and what else could be causing no boost 



thanks for the help




Both codes (P0122 and P0222) are related to throttle body sensor. First thing, check the sensor connector. Unplug it and plug it back again. It migh be loose or dirty. 


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