The generator matrix

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

generates a code of length 22 over Z4[X]/(X^3+2,2X) who´s minimum homogenous weight is 20.

Homogenous weight enumerator: w(x)=1x^0+118x^20+276x^22+112x^24+4x^26+1x^40

The gray image is a code over GF(2) with n=176, k=9 and d=80.
This code was found by Heurico 1.16 in 0.016 seconds.