The generator matrix

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

generates a code of length 89 over Z4[X]/(X^2+2X+2) who´s minimum homogenous weight is 85.

Homogenous weight enumerator: w(x)=1x^0+186x^85+730x^86+660x^87+678x^88+410x^89+298x^90+300x^91+242x^92+112x^93+204x^94+116x^95+93x^96+40x^97+23x^98+1x^102+1x^108+1x^112

The gray image is a code over GF(2) with n=712, k=12 and d=340.
This code was found by Heurico 1.16 in 0.516 seconds.