Hi Guys My VY commodore 3.8l V6 Has a Backfire on Idle issue. I have changed Fuel Filter, Plugs. Coil pack is working fine, but have not changed leads as yet. However while checking i found that When the car is in Idle & Backfireing if i dissconnect the MAF sensor there is NO change..... The car still runs ....not even a slight change in revs.... is this a Faulty MAF? & is this issue consistant with the backfireing fault ? the 'Check Engin' comes on Sometimes...NOT all the time. Any Help will be much appreciated. PS Took it to a Mech in Darwin.... he wants $180 just ro read fault codes & he cant do it for a Month. Typical of Darwin.