A: To remove the ignition coil from the 2AZ-FE engine, start by disconnecting the negative battery terminal and waiting 90 seconds to avoid Air Bag and seat belt pretensioner activation. Next, take off the engine cover, disconnect the four ignition coil connectors, and then remove the four bolts and ignition coils.
Q: How to install the ignition coil and spark plugs on Scion xB?
A: Installation of ignition coil and spark plugs in the 2AZ-FE engine requires 4 spark plugs to be torque to 19 Nm and the 4 ignition coils to 9.0 Nm. Connect ignition coil connectors, adjust ignition timing and screw in No. 1 engine cover using 2 nuts with screwing 9.0 Nm.