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George H.
George H., Hyundai Technician
Category: Hyundai
Satisfied Customers: 18393
Experience:  Hyundai Gold certified, ASE Master tech 15+ years
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I'll make this short I read this post and mine is very close.

Customer Question

I'll make this short I read this post and mine is very close. I have a 03 Tiburon that needs a ecm if I buy a used one with exact numbers the car will run with no programming?
Submitted: 1 year ago.
Category: Hyundai
Expert:  George H. replied 1 year ago.
Hello I will help you with your question,
Yes, you are correct, as long as the numbers match it is plug and play.
Please let me know if you have further questions
Thank you
Customer: replied 1 year ago.

How will putting a used ecm in the car effect the mileage on the odometer and does it matter if it comes from an automatic transmission since I'd be putting to a Manuel transmission.

Expert:  George H. replied 1 year ago.
The mileage is stored in the instrument cluster not in the ECM for the odometer display. It will stay the same.
The numbers will not match manual to automatic, as long as the numbers match it will be correct.
Please let me know how I can help
Thank you

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