92 Z NIGHTMARE

[Vettetech1]

I had a knock code throw at one point. That's what brought me to this forum. But I haven't been able to get it to come back. The vacuum hose to the map sensor on the back of the plenum is new. The only worry spot I just thought about is the elbow that connects the two Pcv valves to the vacuum tube. Come to think about it they seemed pretty sloppy, it's got hose clamps on the bottom side. Any way to seal the top better without buying a new elbow. That could be part of the off idle stumble/hesitation. Been a long hot week maybe next week on a fresh brain will help. I'm sure it's something dumb.