The sparkplugs can be replaced, even by a home mechanic like myself. It's been awhile and I only did it once, but I didn't need to remove anything, just loosen the fuel rails and rotate the injectors.
Couple recommendations:
1) Buy the best plugs you can because you won't want to do this job again.
2) Buy a 6" OAL swiveling magnetic spark plug socket
Couple recommendations:
1) Buy the best plugs you can because you won't want to do this job again.
2) Buy a 6" OAL swiveling magnetic spark plug socket