I don't know for sure get you a data log with tuner pro. 14 initial and 18 in the main spark table is a lot of timming at idle, my v6 would have surging as I would tune it then after I got done and added the ve tables back to gather and run it a few days it seamed to help. if the 7747 bin started out as a v8 you might be better of starting wit a v6 bin. the one I posted is for a standard trans. the mean rich lean o2 setting is a lot higher on v6 bins witch can cause it all so.
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