1. Disconnect the negative battery cable.
2. Remove the plug hoie plate.

3. Disconnect the high-tension lead.

4. Remove the spark plugs using the plug-wrench.
5. Install the spark plugs using a plug-wrench.
Tightening torque: 10-24 N·m {1.1-2.4kgf·m, 8-17ft·lbf}
6. Install the plug hole plate.
Caution
(1) To position the plug hole plate, grasp the rubber 1 and 2, as shown in the figure, with your hands and press them in.
(2) Route the accelerator cable more towards the center of the plug hole plate underside to avoid the rib area as shown in the figure.
(3) Grasp rubber 3 with your hand and press it in.
(4) Grasp clips 4 and 5 with your hands and press them in.
7. Connect the negative battery cable.


Ignition coil inspection
Spark plug inspectionMazda 6 Service Manual: Dsc system inspection
Preparation
1. Verify that the battery is fully charged.
2. With ignition switch on, verify that the ABS warning light goes out after
2.4 seconds.
3. Turn the ignition switch off.
4. On level ground, jack up the vehicle and support it evenly on safety
stands.
5. Shift the transaxle to N posi ...
Mazda 6 Service Manual: Fuel injector removal/installation
Caution
Disconnecting/connecting the quick release connector without
cleaning it may possibly cause damage to the fuel pipe and quick release
connector. Always clean the quick release connector joint area before
disconnecting/connecting using a cloth or soft brush, and make sure that it ...