Toyota 90919-02265
Ignition Coil

The procedure to service an ignition coil begins when the user disconnects the negative cable from the battery terminal and waits for at least 90 seconds to avoid Air Bag and seat belt pretensioner activation. Begin the ignition coil servicing procedure by removing the head cover number 2 cylinder through the unfastening of its 4 cap nuts and dismantling the cover. Remove the 4 ignition coil connectors within this stage and detach the 4 bolts so you can pull out the 4 ignition coils. The installation method requires positioning the 4 ignition coils with 4 bolts and torque them to 9.0 N.m which equates to 90 kgf.cm or 80 in.lbf. Then reconnect the 4 ignition coil connectors. Then install the head cover using 4 cap nuts before tensioning them to 7.0 N.m (71 kgf.cm, 62 in.lbf). Before finishing the procedure users must connect the cable to the negative battery terminal while initializing the systems which need this step whenever a cable disconnect and reconnect occurs.

A proper ignition coil service requires a 90-second wait time with disconnected negative battery cable to stop Air Bag and seat belt pretensioner activation. The following procedure involves the removal of the No. 2 cylinder head cover through bolt removal of its four cap nuts along with the head cover itself. The service begins with disconnecting 4 ignition coil connectors followed by the removal of 4 bolts for separating the 4 ignition coils from their housing. Begin installing by placing four ignition coils onto their bolts then secure all with 9.0 N.m torque force of 90 kgf.cm or 80 in.lbf before fastening the 4 ignition coil connectors. The No. 2 cylinder head cover must be installed with the 4 cap nuts at 7.0 N.m (71 kgf.cm, 62 in.l.f.) torque. End the procedure by hooking the cable to the negative section of the battery.

Service execution starts by taking out the No. 2 cylinder head cover followed by disconnecting the 4 ignition coil connectors. Proceed to remove the ignition coils (with igniter) from the spark plugs by disassembling the 4 bolts then extracting the 4 ignition coils (with igniter) while applying torque to a value of 9.0 Nm during reinstallation. The reverse order of removal should be followed.

The key step to removing the 1NZ-FXE ignition coil assembly consists of removing the rear No. 2 floor board followed by the rear deck floor box and subsequently the rear No. 3 floor board. After cable removal from the negative battery terminal you should wait a minimum of 90 seconds before reconnection to stop Air Bag and seat belt pretensioner activation. Start the removal process by disconnecting the engine room No. 2 relay block which requires removal of its 2 bolts and separation of the relay block from its connections. End the procedure by disconnecting the 4 ignition coil connectors followed by removing 4 bolts which allows withdrawal of all 4 ignition coils.

Start the ignition coil service operation by taking out the rear No. 2 floor board, rear deck floor box along with the rear No. 3 floor board. The operator must disconnect the cable from the negative battery terminal followed by a 90-second wait before proceeding to prevent activation of Air Bags and seat belt pretensioners. The service begins with disconnecting the engine room No. 2 relay block through 2 bolt removal followed by disconnection of the relay block. The 4 ignition coils require removal together with the ignition coil assembly. The first step is to disconnect the 4 ignition coil connectors followed by removing 4 bolts to extract the entire 4 ignition coils. The installation procedure begins by installing the ignition coil assembly through attachment of 4 bolts that should be torqued to 9.0 N.m (92 kgf.cm, 80 in.lbf) then connecting 4 ignition coil connectors. Use two bolts to set up the engine room No. 2 relay block with torque reaching 8.4 N.m (86 kgf.cm, 74 in.lbf). The negative battery cable should be reconnected before the installation sequence of rear No. 3 floor board, rear deck floor box, and rear No. 2 floor board. Achieve initialization for those systems which need it following the battery cable removal and reattachment procedure at the negative terminal.

A professional can start installation of ignition components by using a 14 mm spark plug wrench to add the 4 spark plugs at a torque of 18 Nm (184 kgf-cm, 13 ft-lbf). Afterward, mount 4 ignition coils on the bolts while tightening them to 9.0 Nm (92 kgf-cm, 80 in-lbf) torque and join the 4 ignition coil connectors. First tighten the 2 A nuts before you move on to the 2 B nuts when installing the cylinder head cover; torque both sets to 7.0 Nm (71 kgf-cm, 62 in-lbf). Insert the cable at the negative battery terminal while securing it with a torque setting of 5.4 Nm (55 kgf-cm, 48 in-lbf).

A torque of 9.0 N.m (92 kgf.cm, 80 in.lbf) should be applied.

A torque of 9.0 N.m (92 kgf.cm, 80 in.lbf) should be applied.

Installation follows the reverse order of removal.

Remove the ignition coils (with igniter) from the spark plugs by taking out the 4 bolts and pulling out the 4 ignition coils (with igniter).

A torque of 9.0 N.m (92 kgf.cm, 80 in.lbf) should be applied.

Disconnect the engine room No. 2 relay block by removing the 2 bolts and disconnecting the relay block.

A torque of 9.0 N.m (92 kgf.cm, 80 in.lbf) should be applied.

Remove the air cleaner assembly.

Connect the 4 ignition coil connectors.

Disconnect the 4 ignition coil connectors, remove the 4 bolts, and pull out the 4 ignition coils.

Begin by installing the 4 ignition coils using the 4 bolts, ensuring a torque of 9.0 Nm (92 kgf-cm, 80 in-lbf).

Use a 14 mm spark plug wrench to remove the 4 spark plugs.

Reconnect Engine Wire No.3 (Battery Negative Terminal).

Connect the cable to the negative battery terminal with a torque of 5.4 Nm (55 kgf-cm, 48 in-lbf).

Remove cylinder head cover No. 2 by taking off the 4 nuts.