spark plugs will not come out

I had the same issue on my 03 Sentra, spray the plugs with PB Blaster and let it soak. Then try again (make sure the engine is cold.)

I have also had a Tech at Acura tell me to: loosen all plugs a 1/4 turn, put the coils back on, start the engine and floor it once than turn the engine off. (it is supposed to blow the carbon off the plugs making it easier to remove.)

I ended up using a impact gun, (last resort.) GL Once you get them loose use never seize from now on when you replace the plugs.

Be very careful and dont rip the threads out or your going to have bugger problems than sparkplugs getting stuck

3.5 time lol

+ one on the PB blast soak. Let it soak overnight and put plenty on it. I had a stuck o2 sensor the other day. Took me using my IR air impact to remove it and it pulled the threads from the o2 sensor but luckily, no damage to the manifold. Once you release them, buy a spark plug thread chaser to clean the threads, then anti seize the new plugs.