Emission Applications

1997 Infiniti

Model, Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

I30 3.0L V6 SFI

PCV, EVAP, ⁽³⁾ TWC, FR, EGR, SPK, ⁽⁴⁾ HO2S, CEC, MIL
⁽⁵⁾ EVAP-CPCS, EVAP-VC, EVAP-CPVCV, EGR-BPT, EGR-CS, EGR-TS, SPK-CC, KS

J30 3.0L V6 SFI

PCV, EVAP, ⁽⁶⁾ TWC, FR, EGR, SPK, ⁽⁷⁾ HO2S, CEC, MIL
EVAP-CPCS, EVAP-VC, EGRC, EGR-TS, SPK-CC, KS

Q45 4.1L V8 SFI

PCV, EVAP, ⁽⁸⁾ TWC, FR, EGR, SPK, ⁽⁷⁾ HO2S, CEC, MIL
EVAP-CPCS, EVAP-VC, EGR-BPT, EGRC, EGR-TS, SPK-CC, KS

QX4 3.3L V6 SFI

PCV, EVAP, TWC, FR, EGR, SPK, ⁽⁷⁾ HO2S, CEC, MIL
EVAP-VC, EGR-BPT, EGRC, EGR-TS, SPK-CC, KS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See INFINITI in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Each cylinder head has a warm-up TWC located in exhaust Y-pipe. A third one is downstream.

⁽⁴⁾	Equipped with 3.

⁽⁵⁾	California emissions.

⁽⁶⁾	Equipped with 2.

⁽⁷⁾	Equipped with 4.

⁽⁸⁾	Each cylinder bank exhaust pipe has a warm-up TWC & a TWC (a total of 4 TWCs are used).