How do you remove a frozen cv axle nut on a 1994 Honda accord?

Spray on some PB BLASTER and let it sit for a day to penetrate. That's what I woudl do first, then check back if it's still tight. You may need to use heat.

How to get a frozen axle nut off.Use heat and an impact gun. If you don't have access to either take it to a repair facility.

Yea, Just use an impact Hammer... keep pounding, it's taken me up to 8 or 10 seconds on one nut, out of about 30 or 40 that I've done.