1999 Volvo S70 idle control valve? ECM inputs?

1999 VOLVO S70
135,000 MILES • 4 CYL • 2WD • MANUAL
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FLP
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Situation: Car in neutral & coasting to a stop light. Starting at approximately 30 mph & slowing, the rpm fluctuates from 500rpm to 1300rpm and at times engine stalls. Above 30mph and car rolling in neutral the problem does not exist.
Dec 28, 2009 at 9:47 AM
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DOCFIXIT
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Have computer checked for diagnostic trouble codes may shed light on problem
Dec 28, 2009 at 10:56 AM