VR30DDTT engine
- CHECK AIR FUEL RATIO (A/F) SENSOR 1
- Turn ignition switch OFF.
- Disconnect A/F sensor 1 harness connector.
- Check resistance between A/F sensor 1 terminals as per the following.
A/F sensor 1
Resistance
+
-
Terminal
1
2
1.8 - 2.44 Ohm [at 20 Deg. C (68 Deg. F)]
3
Infinite Ohms
(Continuity should not exist)
4
2
3
4
3
4
Is the inspection result normal?
YES
INSPECTION END
NO
GO TO 2.
- REPLACE A/F SENSOR 1
Replace air fuel ratio A/F sensor 1. Refer to TURBOCHARGER : Exploded View .
CAUTION:- Discard any 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 sensor, clean exhaust system threads using Oxygen Sensor Thread Cleaner [commercial service tool (J-43897-18 or J43897-12)] and approved Anti-seize Lubricant (commercial service tool).
INSPECTION END