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I bought a 2009 dodge charger it will not go over20 need help knowing whats wro? on 2009 Dodge Charger

Engine light came on 2 months back it will not accerlate over 20 and as soon as I start it the esp light comes on a lightening bolt symbol appears and the rpms are exided without pushing gas I have codes p1790, p0734, p0123, p2111

Asked by for the 2009 Dodge Charger
you have po123 poss throttle position sensor or accel pedal position sensor issues. po734 gear shift ratio errorpo1790 almost t he same as po123 and p2111 throttle body issues. i rec you seek complete diag and est for all codes as this will need testing to determine all causes of codes