Injector Numbering Discrepancies

[Nick912]

Hi all,

I was just re-dialing in the maf this morning, and decided to double check that all injectors were firing properly (on bank 1, anyways) by disabling injectors on cylinder 1,3,5 and 7 one at a time. I have a wideband on bank 1. Fueling went 25% lean as expected with injector 1 and 3, but injector 5 and 7 made no difference. I could hear the idle change so I knew injectors were disabling somewhere... After screwing around a little, fueling went lean when disabling injectors 6 and 8... last I checked LS's have cylinders 1,3,5 and 7 on bank 1... any ideas as to what's going on here? Do the injector numbers HPtuners is referencing not match cylinder numbers, or is something else up?

Setup:
2011 M6 Camaro SS
Cam: 235/248 111lsa 109.5icl
Catless headers, 3in exh and CAI

[383_Stroker]

The injectors are numbered by firing order, not cylinder position. Or so i've been told

So:
1 = 1
2 = 8
3 = 7
4 = 2
5= 6
6 = 5
7 = 4
8 = 3

[Nick912]

Alright, that makes a lot more sense. Thanks man