The generator matrix

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

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

Homogenous weight enumerator: w(x)=1x^0+4x^2+118x^4+4x^6+1x^8

The gray image is a code over GF(2) with n=32, k=7 and d=8.
This code was found by Heurico 1.16 in 3.62e-008 seconds.