The generator matrix

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

generates a code of length 22 over Z8 who´s minimum homogenous weight is 12.

Homogenous weight enumerator: w(x)=1x^0+40x^12+4x^13+176x^14+100x^15+242x^16+784x^17+528x^18+2128x^19+4752x^20+3128x^21+8800x^22+3128x^23+5048x^24+2128x^25+608x^26+784x^27+72x^28+100x^29+112x^30+4x^31+85x^32+16x^34

The gray image is a code over GF(2) with n=88, k=15 and d=24.
This code was found by Heurico 1.16 in 3.08 seconds.