Aluminum block to iron block issue

[1ulost2]

So I have a 2011 gt500 with a coyote pcm to control my 6r combo and I recently switched from aluminum block to iron block an I’m having a o2 issue where my bank 1 is rich an bank 2 is lean,car has longtubes,return style and id1000s,I’ve put new o2s in still same issue,got injectors cleaned Checked the maf,smoked for vacuum leaks and still no solution,has anyone had similar issues ???


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[01yellercobra]

The block material doesn't matter. I'd guess the harness is backwards so the ECU is reading the banks incorrectly.

 

[1ulost2]

I’ve checked wire diagram and everything is where it’s supposed to go, put new o2s in and it switched sides, feel like maybe a ground issue


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