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

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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
(1) Answer
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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
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