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What is the most common cat oolitic converter that goes on the Avenger there is one on the manifold one at the base of the y pipe and one in midstream between Y pipe and muffler

I thought I had a head gasket gone because codes are coming up random misfire all ignition has been changed including distributor only thing left is clogged catalytic but would like to know which one to start with

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Friend, your car has only one (1) catalytic converter. It may have one or two mufflers. Tenneco makes the Walker brand of mufflers and catalytic converters and have many for most cars. Check their online catalog to see it a system is available for your car. I would recommend you replace the one or two Oxygen sensors at the same time... poor gas mileage is often the result of failed Oxygen sensors. Most cars have two, some have only one. One may screw into the exhaust manifold (header pipe) and another after the catalytic converter. Good luck ;)

Posted on Apr 02, 2015


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1 Answer

We’re is pre-cat 02 sensors located on early 2003 Bmw 318i

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How many o2 sensors does a 1998 oldsmobile #.8 engine have

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There are 2 upstream o2 sensors on cadillac sls and 2 downstream. There are 2 exhaust manifolds on the 8 cyl 4.6 L bank 1 sensor 1 which is backside manifold and bank 1 sensor 2 which is front manifol

the back manifold ( closest to the fire wall) is bank l
there are not 2 x O2 sensors up stream
they are heated oxygen sensors (HO2S) and are in the manifold or exhaust pipe before the cat converter
The 2 x O2 sensors are after the cat converter in the exhaust pipe
so bank 1 sensor 1 is a HO2S sensor
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3l, 6 cyl (California emissions). Where is the 4th O2 or (A/F) sensor?

HO2S( heated sensor) are before the cat convertor either in the manifold or exhaust pipe to the cat converter
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1 Answer

Where is bank 1 02 sensor located on 2003 Toyota matrix

Hello, there are two sensors, one is the air/fuel ratio sensor which is in the pipe between the exhaust manifold and the catalytic converter and the oxygen sensor which behind the cat converter in the exhaust pipe, The most common fault is the front sensor but it depends on what the diagnostic code number is to be more specific.

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1 Answer

Need to know where the oxygen sensors are located on a 2006 bmw 525i.

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4 Answers

I need to know where the oxygen senor is locate at

There will be one located before your catalytic converter and one after your catalytic converter for each exhaust system you have.
In some cars, there can be 2 O2 sensors before the catalytic converter even if there's only one exhaust system.

Bank 1 will refer to the sensor that's on the same side as cylinder 1 and Bank 2 will mean the opposite side.

Sensor 1 will refer to the sensor before the catalytic converter and Sensor 2 will mean the one after the cat

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1 Answer

Catalytic Converters

You are correct. That portion of exhaust is indeed a catalytic convertor. This would be in the rear portion of the pipe with a flexible section that goes underneath the oil pan. Then you have a long muffler and a final muffler in the rear of the vehicle.

Nissan Scope Technician- 10+ years experience in Nissan dealership

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