timetoblaze
8/11/2006 4:04:36 PM
TWC System Low efficiency B1 (P0420)...pulled that today
Dory
8/11/2006 4:20:19 PM
that is a converter low efficency code, needs a cat and maybe an o2 as well
thats from my friend at Chevy
timetoblaze
8/11/2006 5:27:40 PM
kinda sux.... thanks for the help
