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Running Really Rich and Hesitation

728 Views 2 Replies 2 Participants Last post by  MNYPIT
well i took my truck in to get it smogged 2 days ago, passed all the smog tests except for hydro carbons at idle, then yesterday driving down the highway the Check Engine light comes on so i pull over, truck doesnt seem to be running bad, so i continue to work. Pulled the codes last night and got 12, 22, 37, 21, and 55, I know 12, 37, and 55 should be there. 21 and 22 are the Coolant temp sensor and O2 sensor, so i picked up new ones today. Havent put them in yet. Think that that is the only problem? maybe somethign else? thanks guys!

Justin
1 - 2 of 3 Posts
cool thanks smokey, the coolant temp sensor has never been replaced because I could never find one that was shallow enough for my intake manifold...finally found one that looks as though it will work.
1 - 2 of 3 Posts
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