Execution sequence
1. We prepare the car for work (see «Preparing the car for maintenance and repair»).
2. Remove the ignition module (see «Ignition module - check and replace»).
3. We remove the wiring harness of the control oxygen concentration sensor from the holder on the cover of the head of the block and take it aside (see «Oxygen Sensors - Replacement»).
4. Compress the clamp with pliers and disconnect the hose of the crankcase ventilation system.
5. In the same way, we disconnect the hose for supplying crankcase gases to the throttle space...
... and a hose for supplying crankcase gases to the space in front of the throttle valve.
6. We remove the coolant supply hose to the throttle assembly from the holders on the cylinder head cover.
7. Compress the clamp with pliers and disconnect the hose for supplying coolant to the throttle assembly, while a small amount of coolant may spill out.
8. Using the TORX E10 key, we unscrew ten bolts securing the cylinder head cover.
9. Pulling up, remove the cylinder head cover.
10. Remove the gasket from the grooves in the cylinder head cover.
Warning! Use only special sealant for vehicles equipped with exhaust oxygen sensors. Using conventional sealant (with a high content of silicone) may damage the sensors.
11. We install the parts in the reverse order. Before installing the cover, apply a thin layer of sealant to the front camshaft bearing caps...
... and on the cutouts of the block head opposite the rear ends of the camshafts.
12. We check and, if necessary, bring the coolant level to normal.
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