0
The oxygen sensor reports live information about the engine's air/fuel mixture to the power train control module. This information is used primarily to help calculate fuel delivery to the engine, which changes continuously while it is running. If the engine is running lean, the power train control module will sense this from the oxygen sensor's signal and increase the air/fuel mixture to the engine. Conversely, just the opposite occurs when the engine begins to run rich. On OBDII-equipped vehicles, the sensors are also used to help determine the efficiency of the catalytic converter. The power train control module does this by comparing the signal of the sensor located at the inlet of the catalytic converter with the signal of the sensor located at the outlet of the converter.
Wiki User
∙ 15y ago
Wiki User
∙ 14y agoTo make sure that your car's fuel system has the proper amount of air/fuel ratio. The O2 sensor senses this, and if your mixture is too rich, the computer gives the engine more air. if the mixture is too lean, the sensor tells the computer to adjust and allow less air into the engine.
Add your answer:
Earn +20 pts
Were is the secondary 02 sensor located?
where is the secondary 02 sensor on a 2004 crv
What makes an 02 sensor go bad?
exaust leaks , faster if its before the 02 sensor
What is a code p0139?
P0139 02 Sensor Circuit Slow Response (Bank 1 Sensor 2)P0139 02 Sensor Circuit Slow Response (Bank 1 Sensor 2)
What item is not part of the internal engine system crankshaft position sensor cylinder head timing chain or 02 sensor?
02 sensor
Where is the crankshaft sensor on a 1999 2.5L?
underneath the cam rod with the 02 sensor
What does PO135 mean when checking the codes?
02 sensor heater curcuit malfunction (bank 1 sensor1)---change front 02 sensor if need be.
What does auto diagnostic code P0137 02 signal low bank 1 sensor 2 mean?
You have a bad 02 sensor after the catalytic converter.
Where is the 02 sensor for bank 1 sensor 2 on a 97 s10 with a 4.3?
That would be the sensor after the catalytic converter.
Where is the 02 sensor down stream sensor on a 4-cylinder?
That would be the sensor in the exhaust after the catalytic converter ( downstream )
Where is the location of the 02 sensor on a 2006 dodge caravan bank 1 sensor 2?
That is the sensor in the catalytic converter.
Where is the O2 sensor located on a 2006 Blazer What is the color of this sensor?
where is the 02 censor located
Is there a sensor on the bottom of the exhaust on a 1999 mercury sable?
you do have an ( 02 ) sensor on the exhaust system
