The generator matrix

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

generates a code of length 19 over Z4[X]/(X^2+2X+2) who´s minimum homogenous weight is 15.

Homogenous weight enumerator: w(x)=1x^0+396x^15+1471x^16+3590x^17+6638x^18+8402x^19+6964x^20+3628x^21+1228x^22+352x^23+76x^24+14x^25+6x^26+2x^27

The gray image is a code over GF(2) with n=152, k=15 and d=60.
This code was found by Heurico 1.16 in 2.3 seconds.