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Message: <blockquote data-quote="Canuck714" data-source="post: 2069371" data-attributes="member: 6707">Hey MTF, thanks for jumping in.Yep, added the spacers along with new downstream O2 sensors, no change.I don't idle mush TBH, and after I reset the codes I will go a few ignition cycles before it triggers another CEL.I am leaning more to the fuel pump not being able to keep up when demand /load increases.Will probably drop tank and add a holey pump that double flow rate just to be sure I am not in the red.I don't think I can watch fuel trims live. I use an NGauge for monitoring AFR, Temps etc.</blockquote>