Kahit ba warm/hot na yung engine ganun pa rin? Normal kse sa mga autochoke idle ang ganyan will rev to 1500 rpm then it will gradually drop to +/-750 rpm lang after it sensed ng thermostat na warmed up na ang cooling water circulation.
Mine was previously diagnose with a fautly Throttle position sensor failure kaya minsan laging tumataas ang idle... a whole assembly ng Throttle ang pinalitan I thnk..27-28K ung parts price. Pa diagnose mo kung ano yung ECU code fault ang lumalabas.