The generator matrix

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

generates a code of length 32 over Z4[X]/(X^2+2X+2) who´s minimum homogenous weight is 30.

Homogenous weight enumerator: w(x)=1x^0+14x^30+288x^31+31x^32+96x^33+16x^34+64x^35+2x^46

The gray image is a code over GF(2) with n=256, k=9 and d=120.
This code was found by Heurico 1.16 in 0.016 seconds.