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Q: I HAVE A IDLING PROBLEm at engine start she idles high,when i come to a stop li on 1999 Ford Mustang

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
lite she idles so low it seems lt gonna shut off sometimes i shift to netural, what could b the problem plugs and wires were chsnged also fuei filter,is there some sort of idlling switch i should change
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Most likely it is the IAC (idle air control) replace the IAC clean the throttle body then clear all codes and reset the keep alive memory. Road test at various speeds for about twenty minutes to relearn the idle stratedgy.
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