Rare but random stutter on throttle

[gezed]

It seems that during normal driving, there are rare times when the car randomly and suddenly stutters similar to lifting off the throttle even though I am still on the gas

This will only be for a split second and at the same time, the HICAS light with flicker on and I'm pretty sure voltage dips a bit too

I think it may be a bad ground but not sure where to look, or is there any other possible causes for this issue?

[Skym]

Intake airleaks around MAF's (hose clamp on MAF or crack in rubber piping after MAF's) is what can cause stuttering, coilpacks randomly make engine miss / run on 5 cylinders (similar to airleak around MAF), TPS (affect's transient fueling or basically stops engine going lean, hesitating before accelerating, which might cause a lean misfire, jerking if not working properly).

[Veet-88]

I had a very intermitant stumble turned out that it was the plug conmections to the maf board itself. Have to cut the silicone off pull the top plate to check. After i re sauldered the connections no more issues