is your car speed density? if so mine did the same thing. mine was worse when it was hot outside. i converted to mass air and i have had no problems with idle or running anymore. also the whine from the pump, mine does the same thing it,s a little louder than normal, but it still works fine.
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86 gt 3.73's,underdrives, welds, pro-5.0 shifted, chip,autometers,flowmasters, k&n,2.5" cowl hood, new motor in the works.. 00 250 powerstroke diesel
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