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  X  X  X  0  X  0  X  X  X  X  6  6  1  1  1  1  1  X  1
 0  X 2X  0 X+3 2X  6 X+3 2X+6  6 X+6 2X+6  6  0 X+6  X 2X 2X+6  3  3 X+3 X+6 2X+3 2X+3  3  X 2X+3 X+3 2X X+3  X 2X  X X+6 2X+6 X+6 2X+6  X  X  0  0  6  6  0  6  6
 0  0  6  6  3  3  3  6  0  6  0  6  0  3  6  3  0  3  0  6  0  3  6  3  3  6  0  3  0  6  0  6  6  0  3  3  6  6  0  0  6  6  0  3  0  3

generates a code of length 46 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 90.

Homogenous weight enumerator: w(x)=1x^0+362x^90+252x^93+90x^96+20x^99+4x^108

The gray image is a code over GF(3) with n=414, k=6 and d=270.
This code was found by Heurico 1.16 in 0.105 seconds.