Question about Cars & Trucks
There is a sensor located before a emission device called a catalytic converter that is located on both sides. The sensors in the back of the engine are called O2 sensor 1 bank one, (sensor before the catalytic converter) and O2 sensor 2 bank one (located after the converter).
On the front of the engine, going down you have two as well for there is a converter on both sides. first one coming from the engine is O2 sensor 1 bank 2 and then your failed one after the converter, O2 sensor 2 bank 2.
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Posted on Feb 17, 2012
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Posted on Jan 02, 2017
SOURCE: Mazda 3 2004 Oxygen Sensor
It calls for a four wire sensor. Try wwwoxygengeek.com call there 1800 number for a thorough listing.Because somtimes they dont list a vehicle on there site.Good Luck!!!
Posted on Aug 04, 2008
im not for sue how many but u need to take it to autozone if u have one where u live they will tell u where it is the most comon one if u have straight eguast is the one right in front of the cats if its that one u should notice a stall out every time u fill up from below empty on ur gauge
Posted on Mar 18, 2009
Your Elantra has more than one oxygen sensor. There is a pre-catalyst sensor and a post-catalyst sensor. Both can be found on the exhaust. You simply disconnect the sensor wire and remove the sensor plug with the proper size deep socket. Be sure you have the correct sensor for replacement.
Because of the heat involved with the exhaust, make sure the engine is cool before attempting to remove and replace the sensors. They may be tough to remove so a shot of WD-40 or 5-56 spray may need to soak into the threads to ease removal. When you replace the new sensors, a coating of anti-seize will be helpful for future removal.
Keep in mind that one malfunctioning sensor can send information that will set off codes on other sensors "downstream" or send codes from other emission controls on the engine.
Posted on Apr 26, 2010
The sensor in question is behind the engine on the exhaust manifold.
You can test the heater in the sensor with an ohmmeter using the following procedure:
Posted on Oct 24, 2010
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A code P0430 may mean that one or more of the following has happened:
First, inspect for exhaust leaks.
Next step is to measure the voltage at the oxygen sensor on Bank 2. In fact, it would be a good idea to test each oxygen sensor while you're at it.
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