ok running rich high lambda and co had catch can on so thought id replace the pcv valve and all the pipes and relief valve but the relief valve puck is connected to the catch can,I don't have vac when I remove the filler cap unless I put my finger the end of the puck ,when i remove my finger it keeps the vac in the engine as it should and it runs a lot better until I release the vac from the engine then I get group 33 goes high but it wont get the engine vac on its own unless I stick my finger on the puck again any ideas lambda control group 33 doesn't go up and down + - it stays in one place
