Originally Posted by 1turbofocus
In NC the engine has to be at running temp to do the sniff test so the CAT would be heated , place the wide band o2 in the second hole and you will be fine
General group question. Is anyone aware of a location in the country where they actually DO a cold start sniff test?
You think the wideband will have sufficient exhaust flow? (Yes I am aware that the bung is somewhat imbedded deeper into the canister, but its only ~1/2").