Just found some relevant threads in case you didn't already see them:

http://www.vehicross.info/forums/sho...&highlight=maf

http://www.vehicross.info/forums/sho...ight=high+idle

http://www.vehicross.info/forums/sho...&highlight=maf

http://www.vehicross.info/forums/sho...highlight=idle

http://www.vehicross.info/forums/sho...highlight=idle

http://www.vehicross.info/forums/sho...highlight=idle

http://www.vehicross.info/forums/sho...highlight=idle

http://www.vehicross.info/forums/sho...highlight=idle

http://www.vehicross.info/forums/sho...highlight=idle

http://www.vehicross.info/forums/sho...highlight=idle