1997 Ford Station Wagon

Engine Performance problem
1997 Ford Station Wagon 6 cyl Front Wheel Drive Automatic 130000 miles

i have a 97 taurus wagon driving is usually ok but when it idles it starts sputtering to just about stall the code that shows up is 443 and I dont know where to look or how to fix can someone help me?
May 7, 2009.

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