The generator matrix

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

generates a code of length 45 over Z4 who´s minimum homogenous weight is 40.

Homogenous weight enumerator: w(x)=1x^0+18x^40+30x^41+34x^42+26x^43+29x^44+20x^45+14x^46+28x^47+6x^48+14x^49+6x^50+10x^51+7x^52+5x^54+3x^56+3x^58+1x^62+1x^66

The gray image is a code over GF(2) with n=90, k=8 and d=40.
This code was found by Heurico 1.16 in 0.0183 seconds.