Australian Car Repair Issues? Ask an Auto Mechanic for Answers ASAP
I am sorry that you have not been helped yet. I just came online and saw your question
By idle motor, do you mean the idle air control(IAC) motor.
I also need to know what year Rio yours is and what is the fault code number that is tripping the check engine light - it will be a 4 digit code preceded by the letter P - example - P0505