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05/04/2021 5:07 pm
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Thank you for everything you do Scotty love your channel, my car has 160000 miles and I took it to Autozone for an engine check light and it’s showing *P0507 idle control system RPM had high voltage than expected for a predetermined period of time.* Me and my dad already replaced the IAC with a brand new one from Amazon seller: DOICOO. Any idea what we could be missing? thank you sir.
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05/04/2021 5:34 pm
Clean the MAF sensor as well. Also use the OEM for the IAC valve.
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05/04/2021 6:07 pm
If the old IAC valve is around, you could clean it. (OEM is often much better than aftermarket, even a used OEM). Here's a video on cleaning IAC valves, if you're interested. This video shows how to do it with a Toyota IAC valve. It should be similar on the Hyundai:
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