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Author Question: Technician A says that a wide-band oxygen sensor, also called a lean air-fuel (LAF) sensor, can ... (Read 117 times)

Metfan725

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on: Aug 13, 2021

Question 1

On a poorly running engine the wide band oxygen sensor can be quickly checked by ________.
◦ Jumping the connector with a flashlight battery
◦ Jumping the connector with a jumper wire
◦ Disconnecting the sensor connector
◦ Disconnecting the vehicle battery

Question 2

Technician A says that a wide-band oxygen sensor, also called a lean air-fuel (LAF) sensor, can detect air-fuel ratios from as rich as 10:1 to as lean as 23:1. Technician B says that the oxygen sensor signal determines fuel trim which is used to tailor the air-fuel mixture for the catalytic converter. Which technician is correct?
◦ Technician A only
◦ Technician B only
◦ Both technicians A and B
◦ Neither technician A nor B


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Marked as best answer by Metfan725 on Aug 13, 2021

cuttiesgirl16

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Reply #1 on: Aug 13, 2021

Answer 1

Disconnecting the sensor connector

Answer 2

Both technicians A and B


Metfan725

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Reply 2 on: Aug 13, 2021
Gracias!

chjcharjto14

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Reply 3 on: Yesterday
Wow, this really help

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