I put longtubes on my GMC recently and I'm getting the good ole p1054 O2s inop code. Is the correct Bosch part number 13111, which is the rear O2 on the Vettes? I have my rears turned off and as I understand it from searching re-pin these and put them up front and presto, no more code. Am I headed in the right direction?

 

I believe so.

 

yeah you can repin them or i just cut the plugs off and re wired it to the old plugs that should fix your problem bc i had the same code and it worked for me