The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  X  X  1  X  X  X  1  X  X  1  1  X  X  1  X  1  X  1  1  2  1  X  X  X  X  0  1  1
 0  2  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  2  2  2  2  2  2  2  2  2  2  2  2  2  2  0  2  2  0  2  0  2  2  2  2  0  0  2  2  2  2  2
 0  0  2  0  0  0  0  0  0  0  2  2  2  2  2  2  2  2  2  0  2  2  2  0  0  2  2  2  2  2  0  2  2  0  0  2  2  0  0  2  2  2  2  0  0  2  2  0
 0  0  0  2  0  0  0  2  2  2  2  2  0  2  2  0  0  0  0  0  0  0  0  0  0  2  0  2  2  2  0  2  0  2  2  2  2  2  2  0  2  2  0  0  2  0  2  2
 0  0  0  0  2  0  2  2  2  0  0  0  0  2  2  2  2  0  0  0  0  0  2  0  0  2  2  2  0  2  2  0  2  0  2  0  2  2  0  2  2  0  0  2  0  2  0  2
 0  0  0  0  0  2  2  0  2  2  0  2  2  2  0  0  2  0  2  2  0  2  2  2  0  0  0  2  2  0  0  2  2  2  0  2  0  2  0  0  2  0  2  0  2  0  0  0

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+42x^45+25x^46+153x^48+20x^53+6x^54+6x^56+2x^61+1x^62

The gray image is a code over GF(2) with n=192, k=8 and d=90.
This code was found by Heurico 1.16 in 22.9 seconds.