The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  2  2  2  0  0  0  1  1  1  1  2  0  2  0  2  0  2  1  1  1  1  2  2  2  2  0  0  0  2  1
 0  2  0  2  0  0  2  2  0  0  2  2  0  0  2  2  0  2  2  2  2  0  0  0  2  2  0  0  2  2  2  2  0  0  0  2  2  0  0  2  2  2  2  0  0  0
 0  0  2  2  0  2  2  0  0  2  2  0  0  2  2  0  2  2  0  0  2  2  0  2  2  0  2  2  2  2  0  0  0  0  2  2  0  0  2  2  0  0  2  2  0  0

generates a code of length 46 over Z4 who´s minimum homogenous weight is 48.

Homogenous weight enumerator: w(x)=1x^0+3x^48+8x^49+4x^50

The gray image is a code over GF(2) with n=92, k=4 and d=48.
This code was found by Heurico 1.16 in 0.0109 seconds.