Removal and Installation (bank 1): Removal

WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

WARNING:

Perform the work when the exhaust and cooling system have completely cooled down.
When removing the front and rear engine mounting through bolts and nuts, lift the engine up slightly for safety.

Remove the engine and transaxle assembly. Refer to Removal and Installation .
Remove the three way catalyst support (bank 1).
Remove rear engine mount bracket. Refer to Removal and Installation .

Remove heated oxygen sensor 2 (bank 1), air fuel ratio (A/F) sensor 1 (bank 1).

Remove harness connector from heated oxygen sensor 2 (bank 1) and air fuel ratio (A/F) sensor 1, and disconnect the harness from the bracket and middle clamp.

Remove both heated oxygen sensors 2 (bank 1) and air fuel ratio (A/F) sensors 1 using Tool.

Tool numbers	: KV10114400 (J-38365)
: KV991J0050 (J-44626)

CAUTION:

Be careful not to damage heated oxygen sensors 2 or air fuel ratio (A/F) sensors 1.

Discard any heated oxygen sensor 2 which has been dropped from a height of more than 0.5 m (19.7 in) onto a hard surface such as a concrete floor; replace with a new sensor.

Remove exhaust manifold heat shield (bank 1) and three way catalyst heat shields (bank 1) using power tool.
Remove the three way catalyst (bank 1) by loosening the bolts first and then removing the nuts and through bolts.
Loosen the exhaust manifold nuts in the reverse order as shown below and remove the exhaust manifold (bank 1).

Fig 1: Bank 1 Exhaust Manifold Nut Tightening Sequence
Courtesy of NISSAN NORTH AMERICA, INC.

: Engine front

NOTE: Number 7 and 8 are not applicable to removal.