Swapped out a seized engine on my 2003 audi a4 1.8t quattro with an identical engine with less kims in working condition. After swapping started car and traction control light on and EPC Light on Also CEL light on throwing code...throttle/pedal position sensor circuit e low...tried swapping out throttle bodys but same code...the car runs and drives but when you punch it it limits the power and boost and gains speed slower then usually which i believe is limp mode.....
Any ideas on what could be wrong kind of stuck here and need my car running and not sure on what the problem is?