The generator matrix

 1  0  0  1  1  1  1  1  1  3  1  1 X+3  1  6  1  1  1  1  1 2X+6  0  1  X  1  1  1  1 2X+3 X+3 2X+3  1  1  1  1  1 2X+3  1 2X+3  0  1  1  1 X+3  1  1  1  1
 0  1  0  3 X+3 2X+4 2X+1 2X+2 2X+5  1 X+4  2  1  6  1  X 2X+7 2X+8 X+2 X+6  1 2X X+6  1 2X  1  8 2X+4  1  1  1 X+7  3 X+2 2X+2 X+5 X+6  5  1  1 2X+6  4  4  1 X+3  0 X+8  6
 0  0  1 2X+4 2X+2 2X+5 2X+1  6  7  7 X+3 X+2 2X+2  X  X X+5 X+1 X+7  3 2X+7  8  1  4  7  8 X+3  7  2  0 X+1 2X  4  8  2 2X+3 2X+5  1 2X+8 X+5 X+4  0 2X+6  5 X+2  X X+1  X  3

generates a code of length 48 over Z9[X]/(X^2+3,3X) who´s minimum homogenous weight is 90.

Homogenous weight enumerator: w(x)=1x^0+642x^90+420x^91+1542x^92+2886x^93+1242x^94+2100x^95+3270x^96+930x^97+1728x^98+2184x^99+696x^100+936x^101+954x^102+102x^103+6x^104+6x^105+6x^106+8x^108+6x^110+12x^111+6x^112

The gray image is a code over GF(3) with n=432, k=9 and d=270.
This code was found by Heurico 1.16 in 0.492 seconds.