The generator matrix

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

generates a code of length 23 over Z2[X]/(X^4) who´s minimum homogenous weight is 22.

Homogenous weight enumerator: w(x)=1x^0+18x^22+88x^23+11x^24+8x^25+1x^26+1x^34

The gray image is a linear code over GF(2) with n=184, k=7 and d=88.
This code was found by Heurico 1.16 in 0.016 seconds.