Altima L4-2.5L (QR25DE) Hybrid (2007)
Catalytic Converter: Service and Repair
Catalytic Converter
EXHAUST MANIFOLD AND THREE WAY CATALYST
Removal and Installation
Exploded View EM-28
REMOVAL
1. Remove the engine undercover using power tools.
2. Disconnect the electrical connector of heated oxygen sensor 1 or air fuel ratio (A/F) sensor 1, and unhook the harness from the bracket and middle
clamp on the cover.
3. Remove the heated oxygen sensor 1 or air fuel ratio (A/F) sensor 1 using Tools.
Tool numbers
: - (J-44626)
: KV10117100 (J-36471-A)
CAUTION:
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Be careful not to damage heated oxygen sensor or air fuel ratio (A/F) sensor.
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Discard any heated oxygen sensor or air fuel ratio (A/F) sensor 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 one.
4. Remove the exhaust manifold covers (lower).
5. Remove the exhaust front tube.
6. Remove the exhaust manifold cover (upper).