The generator matrix

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

generates a code of length 8 over Z8 who´s minimum homogenous weight is 6.

Homogenous weight enumerator: w(x)=1x^0+112x^6+286x^8+112x^10+1x^16

The gray image is a code over GF(2) with n=32, k=9 and d=12.
This code was found by Heurico 1.16 in 0.00124 seconds.