Thanks Waltnyc, I will review those. I suspect that its my manifold/valley pan gasket sucking air though. I also found that the reason for my MAF reading zero is that the readings in g/s was to small for it to read in lbs. So when I switch to metric after cleaning it is showing .06g/s at idle. Again thank you, my rave copy didn't have the OBD stuff in it that I can see so I will check out your link when I get home.