The generator matrix

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

generates a code of length 31 over Z4[X]/(X^2+2,2X) who´s minimum homogenous weight is 29.

Homogenous weight enumerator: w(x)=1x^0+52x^29+30x^30+96x^31+31x^32+40x^33+4x^37+1x^38+1x^54

The gray image is a code over GF(2) with n=124, k=8 and d=58.
This code was found by Heurico 1.16 in 0.00877 seconds.