The generator matrix

 1  0  0  1  1  1  6  1  1  1  1  2
 0  1  0  1  6  3  1  4  2  3  4  1
 0  0  1  1  3  6  3  2  2  0  1  1
 0  0  0  4  0  0  4  0  0  4  4  0
 0  0  0  0  4  0  4  4  4  4  0  4
 0  0  0  0  0  4  4  0  4  0  4  0

generates a code of length 12 over Z8 who´s minimum homogenous weight is 8.

Homogenous weight enumerator: w(x)=1x^0+98x^8+176x^9+558x^10+592x^11+1250x^12+592x^13+556x^14+176x^15+89x^16+6x^18+2x^20

The gray image is a code over GF(2) with n=48, k=12 and d=16.
This code was found by Heurico 1.16 in 0.0459 seconds.