The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+34x^12+64x^13+170x^14+240x^15+420x^16+900x^17+1326x^18+2624x^19+3136x^20+4400x^21+6188x^22+4320x^23+3124x^24+2584x^25+1412x^26+960x^27+410x^28+240x^29+106x^30+48x^31+39x^32+4x^33+14x^34+4x^36

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 5.4 seconds.