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Ask George H. Your Own Question
George H.
George H., Hyundai Technician
Category: Hyundai
Satisfied Customers: 2102
Experience:  Hyundai Gold certified, ASE Master tech 15+ years
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Running rough and will not idle up wiyh gas peddel movement,

Customer Question

running rough and will not idle up wiyh gas peddel movement
JA: Is the rough idle intermittent or consistent?
Customer: what do you ean
JA: What is the model/year of your Hyundai?
Customer: 2007
JA: Are you fixing your vehicle yourself? What have you tried so far?
Customer: was told catylac converter was plugged but I am doing my own work and replacing o2 sensors all 4
JA: Anything else you want the mechanic to know before I connect you?
Customer: no
Submitted: 9 months ago.
Category: Hyundai
Expert:  Chad Farhat replied 9 months ago.

Hi, I'm Chad. Welcome to JustAnswer. I'm reviewing your question and I will be posting your reply ASAP.

Expert:  Chad Farhat replied 9 months ago.

Hey how are you

is there a check engine light on ?

have you had a diagnostic scan and retrieved the fault codes ?

We need correct Fuel pressure & good Spark for the engine to run correctly ?

Do you have a test light so we can check for spark ?

Do you have fuel pressure tester to check for fuel ?

Do you have any prior experience in electrical troubleshooting and testing with a test light for power & ground ?

what is the mileage ?

if you get me Oxygen sensor readings at idle ,upstream & downstream ones ,on scanner live data while engine running at idle ,you can also measure the cat temperature using a laser temp gun if available to you

i can tell you if the cat is clogged

have you checked plugs, vacuum leaks, maf sensor, fuel pressure , coils ,tps sensor?

IF THE CAT IS CLOGGED , UN HOOK THE EXHAUST SYSTEM AND RUN IT WITH OUT ,DO YOU HGET POWER BACK ,THEN YOU WILL KNOW

Please let me know

Thank You

Chad Farhat

ASE Certified Technician