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closed loop AFR and cat converter
Posted: Sun Jan 25, 2009 5:53 pm
by EITCP
Does anybody has any experience if AFR in closed loop (if you have WBo2 for closed loop input) around 15.5:1 can damage cat converter?
Posted: Sun Jan 25, 2009 8:18 pm
by xenocron
Stock or high flow? I dont think 15.5 is going to hurt a cat converter...a lot of cars out there run way leaner these days.
Posted: Mon Jan 26, 2009 4:31 am
by EITCP
genuine honda one...
Posted: Mon Jan 26, 2009 5:10 pm
by borat
Running rich is what will kill your cat. Speaking from experience here, I melted mine when trying to tune on uberdata back in the day.
Posted: Mon Jan 26, 2009 10:59 pm
by Bugermass
Depending on how close your cat is to the motor, its possible but not likely that running too lean can cause EGTs high enough to overheat your cat.