i am presently gettin a low idle on d engine......first it idles aroun 700rpm and sometimes it jus drops to around 300-400rpm an this is with the ac on. changed d throttlebody and it work good for 2 days den come back. serviced idle control valve with the same prob after. got d diagnostic jack an wired it up, did scan and it said d maf gone so i had changed d throttlebody an still d same problem. ac always on in d car so never tried it without ac.