2. Remove the heated oxygen sensor 1 harness bracket from the cylinder head.
3. Remove the exhaust manifold cover.
4. With a special key (KV10117100) (A) remove the heated oxygen sensor 1.
Attention. Be careful when handling the heated oxygen sensor 1, do not strike it.
Note. The exhaust manifold can be removed and installed without removing the heated oxygen sensor 1 (in this case, you still need to disconnect the wire connector).
5. To turn away a bolt of fastening of a rack of a final collector from a final collector.
6. To turn away nuts of fastening from edges to the middle and to remove an exhaust manifold.
7. Remove gasket.
Attention. Close motor openings to prevent foreign material from entering inside.
8. Remove the exhaust manifold cover from the back of the exhaust manifold.
9. Installation is carried out in the reverse order of removal, taking into account the following:
Tighten the nuts in the sequence shown in the figure.
HR16DE engine
HR20DE engine
Note. The arrow in the figure shows the front of the engine.
Check after removal
With a straightedge (IN) and a set of flat probes (A) check the deformation of the contact surface of the exhaust manifold. If the value obtained exceeds the norm, replace the exhaust manifold with a new one.
Note. MR20DE engine: install the gasket on the cylinder head as shown.
Install the exhaust manifold (2) in the direction shown in the figure.
1. Exhaust manifold.
A. Top mark.
The arrow points to the front of the engine.
Note. This picture shows the 2WD version as an example.