mitch184 Posted November 20, 2003 Share Posted November 20, 2003 i have a buddy with an ea81, who failed emission(in washington) He had way too much carbon monoxide %. I believe this is the unburnt fuel measurement. Is this fixable and if so, how? thanks Link to comment Share on other sites More sharing options...
rallyruss Posted November 20, 2003 Share Posted November 20, 2003 CO is a byproduct of a rich mixture. HC is unburned fuel. sometimes go hand in hand if problem is bad enough. basically its too rich for some reason. do all the usual tune up checks first. then try to narrow down the cause. Link to comment Share on other sites More sharing options...
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