robp823 Posted March 7, 2009 Share Posted March 7, 2009 i know a bad icp sensor can cause a rough idle but can it actually cause a miss?? Also just refresh my memory on 7.3s if you unplug the icp sensor the pcm will go into a default mode and should straighten the idle out? Quote Link to comment Share on other sites More sharing options...
Bruce Amacker Posted March 7, 2009 Share Posted March 7, 2009 If it has a weak/bad injector, it could conceivably cause a misfire by having ICP pressure too low to properly atomize the fuel in one hole. Disconnecting the ICP causes it to go to a default value of 725psi with a higher IPR command. I've never seen a dead miss caused by a bad ICP, but anything could happen. Good Luck! Quote Link to comment Share on other sites More sharing options...
robp823 Posted March 7, 2009 Author Share Posted March 7, 2009 thanks for the refesher bruce Quote Link to comment Share on other sites More sharing options...
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