Ahh I didn't catch that...I guess thats a good thing though otherwise you'd never know it was trying so hard to compensate..but blocking it? I figure let it keep going but still set a code, that way you aren't running lean...ahh GM engineers must have had their reasons though.

hmmm, i may just put my screen back in this weekend

I'd like to try this sometime myself. But I need a new clip for my screen. Can't find it. Still have the screen though.

Just to see if I get more knock or KR with or without it.