The generator matrix

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

generates a code of length 4 over Z4[X]/(X^2+2) who´s minimum homogenous weight is 2.

Homogenous weight enumerator: w(x)=1x^0+8x^2+32x^3+174x^4+32x^5+8x^6+1x^8

The gray image is a code over GF(2) with n=32, k=8 and d=8.
This code was found by Heurico 1.16 in 6.87e-008 seconds.