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indy-tech, Import tech
Category: Hyundai
Satisfied Customers: 7394
Experience:  Work on all import vehicles
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Fault codes p0170 and p0507 shown on code reader. Remedies?

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fault codes p0170 and p0507 shown on code reader. Remedies?

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.

Rgds Greg

indy-tech and other Hyundai Specialists are ready to help you
Customer: replied 6 months ago.
Hi Greg, I have cleaned the throttle body. codes still come up, maybe after thirty minutes driving. Also the revs sometimes increase to around 2500 then drop to 1000. i have recently replaced the maf sensor as well

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 .


Customer: replied 6 months ago.
1975cc (2ltr) petrol CDX. First reg 09/2004

Mike take a look at your Throttle body does it have the black box on the side

or does it have a accelerator cable .


Customer: replied 6 months ago.
2 cables. One from the pedal and one from a box attached to the inner wing

Okay replace the idle control valve .

This is just behind the throttle body as shown in the photo .

Rgds Greg

Customer: replied 6 months ago.
ok. I'll try that. Thanks Greg.

Let me know the outcome Mike .

Rgds Greg

Customer: replied 6 months ago.
Hi Greg, have just removed the IAC and cleaned it. Code 507 doesn't show now,but still get code 170 (fuel trim malfunction)
Customer: replied 6 months ago.
Hi Greg, did you get my last message? Still getting code p0170 showing.