This is a discussion on need help within the General Help forums, part of the LSx Technical Help Section category; i had a trouble code for the o2 sensors so i replaced all four. Then I got a knock sensor ...
10-20-2010, 05:21 AM #1
- Join Date
- Oct 2010
- 2001 pontiac trans am WS6
i had a trouble code for the o2 sensors so i replaced all four. Then I got a knock sensor code for bank one. I replaced both sensors and the wire harness. Now I got a code for bank 1 catalyst effiency below threshold. Could it be something other than the cats triggering this code or could the new o2 sensors just be doing their job? the exhaust doesnt seem to be that old.
10-20-2010, 11:47 AM #2
Probably bad cats, my advice is ditch them and get you some lt's
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