The generator matrix

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

generates a code of length 43 over Z4[X]/(X^2+2X+2) who´s minimum homogenous weight is 42.

Homogenous weight enumerator: w(x)=1x^0+109x^42+54x^43+52x^44+32x^45+1x^46+2x^47+5x^48

The gray image is a code over GF(2) with n=344, k=8 and d=168.
This code was found by Heurico 1.16 in 0.031 seconds.