2001 Hyundai Elantra Hihow Hard ECM Put Car Something Independant Mechanic

2001 HYUNDAI ELANTRA
197,000 MILES
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Hi, How hard is a ecm to put in a car? and is it something an independent mechanic can do? is there any programming of the unit involved?
Jan 7, 2012 at 11:30 PM
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