A: To service the 2ZR-FE ignition system's spark plugs, remove the No. 2 cylinder head cover, ensuring rubber grommets stay attached. Disconnect the camshaft timing oil control valve and ignition coil connectors, then remove the ignition coils and finally the spark plugs.
Q: How to service and repair the spark plugs on Scion xB?
A: To service the 2AZ-FE ignition system's spark plugs, first, remove the No. 1 engine cover by unscrewing the 2 nuts. Then, disconnect the 4 ignition coil connectors and take out the 4 bolts and ignition coils. Lastly, remove the 4 spark plugs.