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#1
June 25th 06, 11:34 PM
posted to rec.autos.tech
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89 f150
I have a 89 fi50 that is idling very high as soon as it is started.
Have changed throttle position sensor and map sensor and checked egr and idle air control, all seem OK. When I unplug the vacum hose going to the map sensor, it idles normal. Could an intake manifold leak be causing the map to recieve low vacum signal and send too much fuel? 
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