The generator matrix

 1  0  1  1  1  0  1  1  0  1  1  0  1  1  1  1  2  2  0  1  1  0
 0  1  1  0  1  1  0  3  1  0  3  1  0  0  2  2  2  2  0  0  3  1
 0  0  2  0  0  0  0  2  0  2  2  2  0  2  2  0  2  0  2  0  2  2
 0  0  0  2  0  0  2  2  0  2  0  2  0  2  0  2  0  2  0  2  0  0
 0  0  0  0  2  0  2  0  2  2  2  2  0  0  0  0  2  2  0  2  0  2
 0  0  0  0  0  2  0  2  2  2  0  2  2  0  0  2  2  0  2  2  2  2

generates a code of length 22 over Z4 who´s minimum homogenous weight is 18.

Homogenous weight enumerator: w(x)=1x^0+46x^18+72x^20+44x^22+42x^24+30x^26+12x^28+8x^30+1x^32

The gray image is a code over GF(2) with n=44, k=8 and d=18.
This code was found by Heurico 1.16 in 0.02 seconds.