The generator matrix

 1  0  0  1  1  1  2  1  1  2  1  1  0  0  X X+2  1  1  X  1  X  1  1  1  X  0  X  1  1  0  X  2 X+2  1  1 X+2  1  X  1  1  1  1  1  0  2 X+2  1  1
 0  1  0  2  3  1  1  0  3  1  2  1  1 X+2  X  0  X X+3  1 X+3  1  X X+2 X+1  1  X  1 X+3  X  1  1  1  1  0 X+2  1  2  1 X+2  0  X  X  2  1  1  1 X+2  X
 0  0  1 X+3 X+1  2 X+1 X+2  3  3  1  X X+2  1  1  1  1  X  X  3  3  0 X+1  0  2  1 X+3 X+1  X  1  0 X+3 X+3  2 X+2 X+2 X+1  1  3  1 X+3  2  X  X  X  X  1 X+3

generates a code of length 48 over Z4[X]/(X^2+2,2X) who´s minimum homogenous weight is 45.

Homogenous weight enumerator: w(x)=1x^0+70x^45+122x^46+86x^47+40x^48+46x^49+68x^50+26x^51+6x^52+12x^53+17x^54+16x^55+1x^56+1x^70

The gray image is a code over GF(2) with n=192, k=9 and d=90.
This code was found by Heurico 1.13 in 0.031 seconds.