after turbo change and battery disconnected for a moth , car has no idle. on 2002 Volvo S40

replaced idle control valve ,coolant tem p sensor no help .no codes at OBS show Mod 1 and Mod 30 not worwing could be ECM bad.removed idle control valve with sw on valve does not move to open voltaje dc aprox .90 volts.or need re programing ECM

by in Miami, FL on March 25, 2013
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1 answer
ANSWER by , March 25, 2013
drive car for approx 5 mins and see if it relearn proper idle