Clear the fault codes and check on Accelerator Pedal you should have 5Volts on 2 wires (Can not remember Which Pins).......................Now start the engine and let it run on idle or, you can rev it for few min till the fault is logged again and now check again while the engine is still running check if you still have 5Volts on those 2 wires if yes than replace the Accelerator Pedal and if one of the wire is missing the 5Volt than your ECU is faulty....................