Nissan ENGINE - Exhaust Manifold and Three Way Catalyst Service

EM-30
< REMOVAL AND INSTALLATION >
[VQ40DE]
EXHAUST MANIFOLD AND THREE WAY CATALYST
EXHAUST MANIFOLD AND THREE WAY CATALYST
Exploded View INFOID:0000000008798968
Removal and Installation (Three Way Catalyst) INFOID:0000000008798969
WARNING:
Perform the work when the exhaust and cooling system have cooled sufficiently.
REMOVAL
1. Remove the front wheel and tire. Refer to WT-47, "Adjustment".
2. Remove the mudguard (if equipped) and front fender protector. Refer to EXT-22, "Removal and Installa-
tion".
3. Remove the exhaust manifold cover bolts.
4. Remove the center exhaust tube, main muffler and front exhaust tube. Refer to EX-5, "Exploded View"
.
5. Disconnect the harness connector from air fuel ratio sensor.
6. Remove the three way catalyst nuts and remove the three way catalyst.
7. Remove the air fuel ratio sensor 1 using Tool, if necessary.
1. Cylinder head (LH) 2. Cylinder head (RH) 3. Exhaust manifold studs (RH)
4. Gasket 5. Exhaust manifold nuts (RH) 6. Exhaust manifold (RH)
7. Exhaust manifold cover (RH) 8. Three way catalyst (RH) 9. Three way catalyst studs (RH)
10. Seal ring 11. Three way catalyst nuts (RH) 12. Three way catalyst nuts (LH)
13. Seal ring 14. Three way catalyst studs (LH) 15. Three way catalyst (LH)
16. Exhaust manifold cover (LH) 17. Exhaust manifold (LH) 18. Exhaust manifold nuts (LH)
19. Gasket 20. Exhaust manifold studs (LH)
ALBIA0654GB
Revision: January 2013 2013 Xterra