The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+9x^8+60x^9+53x^10+68x^11+134x^12+68x^13+42x^14+60x^15+16x^16+1x^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 0.00172 seconds.