Spark plug

 To remove


1.Remove the upper engine cover.
2.Detach the ground cables and unplug the connectors of the engine control module.

Important

Take care when releasing the locking mechanism on the connector so as not to damage the connector. Pull the halves straight apart to avoid bending the pins. For further information regarding connectors, refer to Connectors, handling and inspection.
3.Remove the engine control module with mounting. The lower hole of the mounting is slotted.
4.Unplug the atmospheric pressure sensor connector.
5.Remove the cable duct from the plate bracket.
6.Remove the plate bracket from the intake manifold.

7.Detach the brake vacuum hose from the intake manifold.

8.Remove the holder and check valves for crankcase ventilation and tank bleeding.
9.Unplug the ignition coil connectors. At cylinder 4, the ignition coil must be loosened and lifted slightly in order to unplug the connector.

10.Remove the ignition coils.
11.Remove the spark plugs using 83 95 485 Spark plug socket, with guide sleeves.
 To fit


1.Check the spark plug gap.
2.Fit the spark plugs using 83 95 485 Spark plug socket, with guide sleeves.

Tightening torque 28 Nm (21 lbf ft)
3.Fit the ignition coils. At cylinder 4, the connector must be plugged in before the ignition coil is fitted.
4.Plug in the ignition coil connectors.

5.Fit the holder and check valves for crankcase ventilation and tank bleeding.
6.Attach the brake vacuum hose to the intake manifold.
7.Fit the plate bracket to the intake manifold.
8.Fit the cable duct to the plate bracket.
9.Plug in the atmospheric pressure sensor connector.
10.Fit the engine control module with mounting. The lower hole of the mounting is slotted.
11.Attach the ground cables to the engine control module and plug in the connectors.

Important

Take care when plugging in the connector so as not to damage or press out the pins/sleeves in the connector. For further information regarding connectors, refer to Connectors, handling and inspection.
12.Replace the upper engine cover.