The generator matrix

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

generates a code of length 93 over Z4[X]/(X^2+2,2X) who´s minimum homogenous weight is 84.

Homogenous weight enumerator: w(x)=1x^0+40x^84+76x^85+224x^86+120x^87+367x^88+114x^89+457x^90+134x^91+488x^92+130x^93+446x^94+150x^95+474x^96+126x^97+337x^98+98x^99+142x^100+58x^101+54x^102+10x^103+10x^104+8x^105+10x^106+8x^108+3x^110+3x^112+2x^114+2x^116+1x^120+1x^122+1x^126+1x^130

The gray image is a code over GF(2) with n=372, k=12 and d=168.
This code was found by Heurico 1.16 in 1.85 seconds.