0
How do you know if you need to replace the oxygen sensors or the catalytic converter?
Fault codes thrown by the car's ecm. Neither of these components usually goes bad on its own, their failures are generally caused by something else like a dead cylinder allowing unburned fuel to pass through to the exhaust.
Before you spend the money on either, figure out what other fault codes your car is throwing. If you replace a cat and still have unburned fuel reaching the new one, it will be damaged and you'll need to buy another cat (they wont warranty a failure caused this way)
What else can I help you with?
Where are the oxygen sensors and how do you replace them on a 1999 Pontiac Montana?
In exhaust pipe before catalytic converter unscrew to replace
Can a cracked exhaust manifold cause the check engine light to come on?
Yes, it can affect the oxygen sensors and catalytic converter.Yes, it can affect the oxygen sensors and catalytic converter.
How do you repair code p0420?
Fix any exhaust leaks, test/replace the oxygen sensors, replace the catalytic converter.
Where are the oxygen sensors on a 2005 Chrysler Town and Country?
There are two oxygen sensors. One at the inlet and one at the outlet of the catalytic converter. The catalytic converter is behind the engine.
How many oxygen sensors on Ford Escort 1998?
There are 2 Oxygen sensors. One is on top of the catalytic converter called the upstream and the other is at the bottom of the catalytic converter called the downstream.
Where are the oxygen sensors and how do you replace them on a 1995 Plymouth Grand Voyager?
should be right above the catalytic converter, on the exhaust manifold
How many oxygen sensors in 2004 Saturn ion?
For the 2.2 liter, there are two. One is a pre catalytic converter sensor, and the other is post catalytic converter. They are very easy to access and replace.
How many oxygen sensors are there on a 2001 jeep wrangler Sahara and where are they located?
The 2001 Jeep Wrangler Sahara typically has four oxygen sensors: two upstream (pre-catalytic converter) and two downstream (post-catalytic converter). The upstream sensors are located in the exhaust manifold, while the downstream sensors are positioned after the catalytic converter in the exhaust system. These sensors help monitor the air-fuel mixture and the efficiency of the catalytic converter.
How many oxygen sensors on a 1996 Toyota corolla?
== == 1996 Corolla's have two oxygen sensors. The first sensor, is pre catalytic converter. It is located on the exhaust manifold. The second sensor is post catalytic converter.
How many 02 sensors on a 99 surburban?
There are four oxygen sensors. Two are pre-catalyst and two are post-catalyst oxygen sensors. Basically, there is one sensor for each side of the engine in front of the catalytic converter and there are two sensors behind the catalytic converter.
Where is the oxygen sensor on a 2001 Pontiac Bonneville ssei?
There are two oxygen sensors, there is one located in the exhaust system before the catalytic converter and one after the catalytic converter.
How many o2 sensors does a 2003 impala have?
A 2003 Chevrolet Impala typically has four oxygen sensors. There are two upstream (pre-catalytic converter) sensors and two downstream (post-catalytic converter) sensors. The upstream sensors monitor the air-fuel mixture, while the downstream sensors help check the efficiency of the catalytic converter.
