What's wrong with the G-Diffuser?

Solution 1:

The Gravity Diffusion system, or G-Diffusion, is an experimental power system used in starfighters that reduces gravity forces on the pilot and provides a respectable power source for shields and propulsion.

The G-Diffuser system was created by John Tanaka, from the Galactic Federation and F-Zero game. However, due to the temperamental nature of the G-Diffuser, these systems need to be carefully checked and maintained; while easy to fix in flight, they can consume a pilots' full attention, something that kills pilots in a dogfight.

The G-Diffuser is primarily found on both the Star Fox Team's Arwings and the Star Wolf Team's Wolfen.

Source

If his G-Diffuser is broken, not only is he taking all those G's straight to the face, but he's running on low power. So obviously, he's smart to break off from the group.