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Code 113 is for the fuel injectors.
Code 121 is for the MAF.
I woud suggest getting a second opinion. Unless the wire harness is badly damaged, there is no necessity to replace the complete harness. I would suspect the MAF to be the main cause of the problerm and it could be only due to loose or contaminated wire connectors.
Saturday, November 14th, 2009 AT 2:43 PM