Which of the O2 sensors in a 97 assist the computer in adjusting the A/F ratio? My car is really running rich, and if my theory is correct, it's due to a clogged cat. Any help would be appreciated. Thanks.
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O2 sensors and A/F ratio
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Well, it is banks 1 and 2 the o2's behind the manifolds, the pre and post cat(banks 3 and 4) only read exhaust gas for emmisions :D97 Red Firebird<br />Best N/A 1/4: 13.98<br />Best N/A MPH: 96.13<br />Best Nitrous 1/4: 12.49<br />Best Nitrous MPH: 108.53<p>2001 Pewter Camaro SS <br />GTP Stage II Heads, Pig Cam, Holley Intake, SLP Headers, SLP Lid, Vigalante 3600 Stall Converter, MagnaFlow Cat Back Exhaust, Duel Electric Cut-Outs<br />11.26@121
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