went by o'relliy's and u have a code of p0140, and 2 pending codes of p1133, and p0160. what are they? also i bought some copper gaskets for my collectors, 2 for each side, one side is raised and the other indented. should i put them in with both rased side facing out, with copper silicone in the center, or with both raised sides facing one direction?

 

P0140 HO2S Circuit Insufficient Activity Bank 1 Sensor 2 (rear o2, i think it's driver side)
P0160 HO2S Circuit Insufficient Activity Bank 2 Sensor 2 (rear o2, passenger side)
P1133 HO2S Insufficient switching Bank 1 Sensor 1 (bad front O2, driver side I believe is Bank 1)

your rear O2 codes seem like they weren't "disabled" properly. they should have put them to "no error reported". now the p1133 code means you have a front O2 sensor malfunction meaning you need a new O2

 

here's a few screenshots I took inside of HPTuners, as you can see my Sensor 2's have been put to no error reported, stock they should be set to report on second error. as for the p1133 I have left it alone b/c I use it still

hope this helps
jake

 

ok cool, i will go back next sunday and have it fixed