The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+19x^8+16x^9+65x^10+112x^11+90x^12+112x^13+58x^14+16x^15+18x^16+5x^18

The gray image is a code over GF(2) with n=48, k=9 and d=16.
This code was found by Heurico 1.16 in 0.00125 seconds.