No. What I found was placing an 8ga cable from the drivers battery negative terminal directly to the ground locations for the FICM and PCM (also trans solenoids) has helped some people. Like me, some have seen the as a subjective observation the OBD2 voltage is reported higher.
More important to me, that’s saying voltage supply to the electronics are improved. A moderator on another forum who tried it felt the transmission shifted better. I did not notice that. All of this relatively subjective.
Basically what it does is improve the pathway for the negative side. By the cable, and by reducing the minor resistance of connections by having one each off battery. Resistance in series, is halfed.
It’s an inexpensive modification that can have a benefit. Those who have dual alternators do not need this 8ga addition, nor the drivers frame to engine block. Ford already did that with the dual alternator system by using the same negative battery cable on the passenger side on the drivers side. Although the 8ga wire goes to the body tub, not directly to the FICM/PCM.
Again, some may not see anything, I always see that possibility. And I’m not sell the cable.
The video for that modification.