I'm having the dreaded "hunting idle" and pretty sure it's the iacv,with that being said;I seen online where there was a recall and a kit was offered..In the kit the instructions say intake has to come off..OK my question is,if I replace iacv and not do the egr kit,will it still mess up the iacv??How would I tell if it needs egr kit without removing the intake??Any advice or someone with similar experience on this matter would be great..Thanks in advance