19 sagitar do I need to remove the intake manifold to replace the spark plug?

Because the spark plug is usually installed on the cylinder head, not on or in the intake pipe, it is not necessary to remove the intake pipe when replacing the spark plug.

Replacement steps of spark plug: open the engine hood, lift the plastic cover of the engine, remove the high-voltage branch line, and mark according to the position of each cylinder to avoid confusion. Remove the spark plugs in turn with the spark plug sleeve. When disassembling, pay attention to whether there are leaves, dust, etc. Outside, be sure to clean it up. Put the new spark plug into the spark plug hole, twist it by hand for several turns, and then tighten it with a sleeve. Install the removed high-voltage branch line according to the ignition sequence, and fasten the cover plate.