A sputter that's getting worse

2003 HYUNDAI SANTA FE
175,000 MILES • 6 CYL • 2WD • AUTOMATIC
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COLECASARES
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Started to sputter, changed plugs and wires, still a sputter, noticed spark coming from ignition coils, changed all three, sputter got worse, very rough idle, hardly drive, while out of town a friend of dads looked at it and unplugged some wire near the breather hose now has a smooth idle even when I give it gas but when I try to drive it won't accelerate and will try to stall unless I let off the gas, could this be a sensor? If so which one? Thanks!!
Feb 15, 2016 at 4:59 AM
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JOHNNYT73
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Do you have a check engine light? If so then go to parts store to have them get the code(s) for you.
Feb 15, 2016 at 5:54 AM
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COLECASARES
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Yep, code for the o2 sensor!
Feb 15, 2016 at 6:15 AM
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JOHNNYT73
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What was the code exactly?
Feb 15, 2016 at 6:18 AM
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COLECASARES
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P1166, p1167, heated oxygen sensor, but I had these same codes since before the sputtering
Feb 15, 2016 at 6:24 AM
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STRAILER
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We had a Hyundai int he shop the other day and the spark plug were causing the problem, have you changed them recently?
Mar 7, 2016 at 12:14 PM