Well my vehicle is though the code 42 (Electric Spark Timing Problem). The vehicle does not run bad or anything either. The check engine light will turn on when you turn the car on and it will turn off after a little bit of driving then when you think its gone there it is again. haha.
What should I do to repair it?
If I am not wrong is that something to do with ignition coil?

Any input on this subject will greatly appreciate!

Start with new plugs and wires. You can also test the coils. If these do not correct the problem we can move on to other possibilities.