The generator matrix

 1  0  0  0  0  1  1  1  1  4  1  1  1  4  2  2  6  1  1  1  4  1  0
 0  1  0  0  0  4  4  0  6  6  1  3  5  1  0  1  1  2  5  2  1  7  0
 0  0  1  0  0  4  0  5  1  1  2  7  7  7  1  0  6  3  2  3  5  3  1
 0  0  0  1  0  1  2  2  5  1  3  3  6  2  5  2  5  1  0  3  7  0  1
 0  0  0  0  1  1  3  5  4  5  0  7  6  1  6  4  5  3  5  1  3  1  7

generates a code of length 23 over Z8 who´s minimum homogenous weight is 17.

Homogenous weight enumerator: w(x)=1x^0+242x^17+863x^18+1390x^19+2549x^20+3320x^21+5238x^22+5320x^23+5357x^24+3650x^25+2656x^26+1166x^27+663x^28+244x^29+74x^30+28x^31+6x^32+1x^34

The gray image is a code over GF(2) with n=92, k=15 and d=34.
This code was found by Heurico 1.16 in 7.61 seconds.