guys, ive been reading for hours...too many different answers...
89 GTA, putting on new dual magnaflow cats. i have no emissions testing (Calgary, Canada) there is no air tubes on the cats. But i have the tubes coming from the diverter. I Plan on removing A.I.R. in the future. for now what do i do with the tube coming from diverter. plug it, leave it open, disconnect it from the diverter so its not just hanging there. I imagine i should leave it open but i am new to TPI always had carbs, dont know what to do with it in the meantime...Thanks

 

Mine has been hanging sine the day I bought my GTA years ago. I don't think it is even plugged.

With a good converter, you don't need a smog pump. It has very little to do with emissions anyways. I passed VERY WELL, with no smog pump.

 

So in the meantime before deleting the smog pump i can just leave the air tube from the diverter left open rather than plugging it? I will be taking out a.i.r. when i get my headers/3" mandrel bent all the way back. Cant wait!

 

My pump is gone, but all the tubes are still there, so everything looks good for inspectors.

I dunno if plugging it would hurt the pump or not. Doubtful, but maybe you could find a buyer for a good pump later?

 

does anyone know if the pump is still there if the tube from the diverter to the cat should be plugged or not. I don't think it should because the air that is generated needs to exit somehow correct? Wouldn't plugging it cause an issue? I think I just answered my own question...