Hyundai Repair Questions? Ask a Mechanic for Answers ASAP
Hi, I'm Greg (Indy-Tech).Welcome to JustAnswer. I'm reviewing your question now, and will post back with your reply ASAP.Rgds Greg.
Hi Mike .
You have a typical issue here with the throttle body .
In most cases all you have to do is remove and clean the throttle body with throttle body cleaning spray .
What happens a lot of carbon build up causes the throttle plata to bind and no close correctly .this issue is also causing the P0170 code .
So after a good clean out clear codes do a good test t\drive and then let me know hoe it goes .
For further assistance with this issue please get back to me with the reply box below .This is not a one answer and done i/we will stay with you until the problem is sorted out .Please do not forget to leave positive feedback by clicking on the 5 stars at the top of your page, iam not employees of the site and get no credit for spending time with customers unless they leave positive feedback.
Okay good thanks for coming back Mike .
Looks like a vacuum leak probably due to the manifold gasket or the IAC is acting up.
Mike which engine do you have in your car and model and year .
Mike take a look at your Throttle body does it have the black box on the side
or does it have a accelerator cable .
Okay replace the idle control valve .
This is just behind the throttle body as shown in the photo .
Let me know the outcome Mike .