4AFE fuel consumption & Oxygen sensor

[smiling.tulips11]

What should be the ideal fuel consumption for 4AFE? My engine in EE90 is giving around 7-8 km/l within city along AC. No missing but oxygen sensor is dead. Finding a sensor in working condition is hassle since kabaris selling oxygen sensors don't entertain any guarantee.

[Hassan1991]

should be 10-11 km/l with ac.
get a new o2 sensor.

[smiling.tulips11]

How to check one on the spot? It could only be checked either while fitted in exhaust or with a multimeter along heating.

[Hassan1991]

Resistance between Heated circuit wires should be 11-16 ohm.
but to check feedback of o2 sensor you have to install it.

[Vaqas1]

I don't think 4afe has heated O2. How many wires your O2 sensor has? If check engine light is connected learn how to read ECU codes on 4AFE. That will tell you if there is any issue with O2.

[SER_GTR]

it use 2 wire sensor

[Hassan1991]

late gens have 4 wire o2

[smiling.tulips11]

Single wire oxygen sensor and engine check light is not connected. It's an engine swap.

[Hassan1991]

it's an early generation.
W is the pin of check light.