The generator matrix

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

generates a code of length 84 over Z4[X]/(X^3+2,2X) who´s minimum homogenous weight is 82.

Homogenous weight enumerator: w(x)=1x^0+100x^82+128x^83+155x^84+52x^86+64x^87+8x^90+3x^96+1x^116

The gray image is a code over GF(2) with n=672, k=9 and d=328.
This code was found by Heurico 1.16 in 0.641 seconds.