I go back again and see if it makes it through this time. I recommend going to NJ stattion that goes by appointment this way your not idleing for an hour leting everything build up. I also recommend giving it a good running b4 you go there, a frew wot pulls. Then b4 you pull in the station give a bunch of good rev's.

 

Hey Geezer,

Wouldn't being on line further heat up the cats and clear out the excess CO? That was my thinking at least.

 

I believe it builds up more cause the exhaust is not flowing at a fast rate.