Im not getting any codes up;but now my car pretty good when fist started,then i on 1990 Ford Thunderbird SC

restart it ,it runs rough for awhile , and then smooths out afer I get moving,also i notest that if i run the ac unit it doesnt start back up rough,what can be the proublem, new o2 sensors airflow sensor i re place idle control please help me here with a few ideals thanks

by in El Segundo, CA on March 06, 2013
1 answer
ANSWER by on March 06, 2013
Clean throttle body and IAC passage, check for vacuum leak(s). Ac on bumps up idle speed a little. So sounds like an idle speed problem!

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