Component Inspection
WARNING: This page is about a different car, the 2013 Infiniti FX50. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK AIR FUEL RATIO (A/F) SENSOR 1
- Turn ignition switch OFF.
- Disconnect air fuel ratio (A/F) sensor 1 harness connector.
- Check resistance between A/F sensor 1 terminals as per the following.
Terminal Resistance 3 and 4 1.98 - 2.66 Ω [at 25°C (77°F)] 3 and 1, 2 ∞ Ω (Continuity should not exist) 4 and 1, 2 Is the inspection result normal?
YES: INSPECTION END
NO: GO TO 2.
- REPLACE A/F SENSOR 1
Replace malfunctioning A/F sensor 1. Refer to "EXPLODED VIEW ".
CAUTION:- Discard any 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; use a new one.
- Before installing new A/F sensor, clean exhaust system threads using Oxygen Sensor Thread Cleaner [commercial service tool (J-43897-18 or J-43897-12)] and approved anti-seize lubricant (commercial service tool).
: INSPECTION END