The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+24x^6+24x^7+49x^8+16x^10+8x^11+6x^12

The gray image is a code over GF(2) with n=32, k=7 and d=12.
This code was found by Heurico 1.16 in 0.000271 seconds.