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What is the difference between before and after converter when installing oxygen sensors?
Wiki User
∙ 15y ago
Depends on the vehicle. Sometimes they are all the same. Sometimes the O2 sensors in front of the converter are heated while the rear ones aren't. But the main difference is that the front ones are the ones that effect how the engine runs. The rear ones don't effect how the engine runs. They are only there as a check on the catalytic converter.
Wiki User
∙ 15y ago
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Where are the upstream sensors located?
In the exhaust between the engine and the catalytic converter.
What is functional difference between upstream and downstream oxygen sensors?
From what I understand , the oxygen sensor ( s ) upstream of the catalytic converter is used in the control of the air / fuel ratio . The oxygen sensor downstream of the catalytic converter is called a catalyst monitor and monitors the efficiency of the catalytic converter
Where are the O2 sensors on a 1999 Silverado Z71?
The O2 sensors are located between the exhaust manifolds and the cat converter. They screw in to the head pipes. Those are also called upstream O2 sensors and in some vehicles they are also called air/fuel sensors. There are also downstream O2 sensors that are located after the catalytic converter.
How many O 2 sensors does a 2000 Malibu have?
it has 2 sensors, 1 before converter another after converter in exhaust pipe.
Where are the o2 sensors located on 2003 Toyota 4runner with the V8 engine?
between the exhaust manifold and catalitic converter
Where is the ho2s sensor on a 2002 escort?
It has 2 ho2s sensors. One is upstream from the catylitic converter between the exhaust manifold and the cat. The other is downstream from the converter between in and the exhaust pipe going to the muffler.
Is there a difference between the 2 O2 sensors on the 2.5L 2002 Sentra?
The first sensor senses if the engine is running rich or lean so the ecu can adjust the fueling. The second sensor looks for a difference in readings to verify the catalytic converter is functioning properly
How many oxygen sensors and where are they located on an 04 Nissan Frontier King Cab?
There are 2 oxygen sensors on an 04 frontier pickup 2.4litre. One is located after the catalytic converter (on the exhaust Pipe) and the other is between the exhaust manifold and the catalytic converter.
How to I have a 1998 jeep tj and im wanting to remove the cadillac converter and im not sure what to do about the O2 sensors located front and rear of converter Is there a way to retard these sensors?
The engine will not run properly with out a functioning catalytic converter and working O2 sensors.
How man o2 sensors on 97 explorer xlt 4wd 6cylinder?
My Haynes repair manual shows 2 oxygen sensors mounted between the engine and catalytic converter(s) and 2 oxygen sensors mounted after the catalytic converter(s) which are called catalyst monitors and monitor the efficiency of the catalytic converter(s) on your 1997 Explorer XLT with the 4.0 L SOHC engine
Where are the O2 sensors located?
All O2 sensors are threaded into the exhaust system at various points. Upstream O2 sensors are located before the catalytic converter(s) and downstream O2 sensors are located after the catalytic converter(s).
Does a new catalytic converter come with sensors?
No.
