0212 throttle actuator potensiometer open circuit/short to earth.0206 throttle valve potensiometer open circuit/short to earth.tested wires from throttle body to ecu,ok,tried a new throttle body, had ecu tested,i seem to be going round and round,it sometimes logs a u29c battery voltage 30 open circuit and 0499 ecu faulty codes,but most of time is the first 2 codes,sometimes shows actual data with beliveable info on throttle position but most of the time throttle angle is fixed at 22 degress,any help,please.