I see for the 2004 ECU, the offsets for the cat efficiency are:
2A967-2A96E = CAT THRESHOLD 2 FAIL ABOVE
2A979-2A980 = CAT THRESHOLD 2 FAIL ABOVE B
I'm trying to figure out how to adjust those values to remove the dreaded CEL that comes on when removing your downpipe cat.
Has anyone tried this? I figure there is no point reinventing the wheel if someone has already done it.
Thanks!
Mike