The generator matrix

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

generates a code of length 9 over Z8 who´s minimum homogenous weight is 4.

Homogenous weight enumerator: w(x)=1x^0+60x^4+248x^6+384x^7+750x^8+1280x^9+624x^10+384x^11+332x^12+24x^14+9x^16

The gray image is a code over GF(2) with n=36, k=12 and d=8.
This code was found by Heurico 1.16 in 0.0152 seconds.