Being old school,computer stuff is greek to me.I keep getting PO174 code.After n$2600.00,its obvious my dealer doesnt know either.ANY help on this code would be greatly appreciated.Ty

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O2 sensors for the cats

 

your running lean.

 

Yes, The oxygen sensors are what throws the codes but you may have confused him, he may think that is what is causing the problem when that is not the case...like partsbill said, youre running lean...by the way, what was the $2600 for?