Hi and thanks for using 2CarPros.
Here are the directions for removal and replacement. Additionally, I added a link that discusses tune up and plug replacement.
https://www.2carpros.com/articles/how-to-tune-up-a-car-engine
REMOVAL
3UR-FE IGNITION: IGNITION COIL AND SPARK PLUG: REMOVAL
1. REMOVE V-BANK COVER SUB-ASSEMBLY See: Intake Manifold > Removal and Replacement > Removal
2. REMOVE AIR CLEANER HOSE ASSEMBLY See: Intake Manifold > Removal and Replacement > Removal
3. REMOVE AIR CLEANER ASSEMBLY See: Engine > Removal and Replacement > Removal
4. REMOVE IGNITION COIL ASSEMBLY
(a)Disconnect the 8 ignition coil connectors.
(b)Remove the 8 bolts and 8 ignition coils.
5. REMOVE SPARK PLUG
(a)Using a 16 mm plug wrench, remove the 8 spark plugs.
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Installation is reverse of removal
Let me know if this helps or if you have other questions.
Take care,
Joe
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Saturday, December 29th, 2018 AT 8:10 PM