Throttle block
Remove the engine top cover.
Disconnect the throttle body wiring harness at the air line (5).
Loosen the tightness:
- fastening clamp (3) inlet air duct of the throttle valve block;
- fastening clamp (4) outlet air duct of the air filter housing.
Disconnect the outlet air line from the air filter housing and throttle body. Remove the outlet air duct from the air filter housing (5).
Disconnect fitting (6) canister purge solenoid valve hose on the throttle body.
Disconnect connector (7) throttle block.
Remove:
- fastening bolts (8) throttle block;
- throttle block;
- block gasket.
Clean with cleaner
- mating surface of the throttle body (in case of reuse);
- intake manifold gasket.
Install:
- new intake manifold gasket;
- throttle block.
Tighten the throttle valve mounting bolts to 10 Nm in the order shown.
Torque tighten:
- air duct clamp on throttle body 6 Nm;
- air duct clamp on the air filter housing 6 Nm.
Intake manifold
Disconnect:
- all coil connectors (1);
- connector (2) air temperature sensor.
Disconnect wiring from ignition coils.
Set aside the wiring harness and remove the ignition coils.
Disconnect from intake manifold:
- wiring harness from (3) absolute pressure sensor;
- crankcase ventilation hose (4).
Disconnect the union of the pipeline of the vacuum amplifier of brakes (5) from the intake manifold.
Disconnect from intake manifold:
- engine wiring harness (6);
- branch pipe of the canister purge solenoid valve.
Remove:
- bolts (IN) intake manifold mounts;
- intake manifold;
- intake manifold gaskets.
Clean with cleaner:
- a nest for each intake manifold gasket, if it is reused;
- the mating plane of the lining of the injector bodies.
Install new intake manifold gaskets.
If replacing the intake manifold, remove:
- block of wires of the air temperature sensor;
- absolute pressure sensor.
Install the intake manifold. Torque tighten in the following order:
- intake manifold mounting bolts 1-5 9 Nm (preload);
- intake manifold mounting bolts 1-5 12 Nm (final tightening).