Question about 2000 Hyundai Accent

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Where is oxegyn sensor located? I have 2000 accent, light says sensor or cat converter.

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It has two 02 sensors one before the catilitic converter and one after and both are on the exhaust pipe you can see them and they will have 4 wires on them, it takes a special wrench to remve them, called an 02 wrech costs about $30.00 but you can't remove them without it. The 02 sensor wears out over time and normally gets lazy, meaning it does not shift voltage fast enought so the computer throws a fault code. Best way to figure out which one is take it to autozone or schucks and have it scanned for free then buy the sensor from them to replace. This is not to hard of a fix. If you need more information just make a post here.

Posted on Jul 16, 2009

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O2 Sensor Bank 1 Sensor 2 location


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2000 Cavalier catalytic converter was stolen/check engine light


The check engine light is probably indicating a catalytic converter malfunction the Oxygen sensor that is located after the cat tells the computer if the cat is functioning properly it is possible the wire has been broken or damaged. To see if the cat is there jack up the car and look under the passenger and driver area of the car follow the exhaust pipe from the front back the first thing the pipe comes to should be the cat it looks like a muffler with a wire going to a sensor after toward the back side of it, I doubt they never installed one but I guess it is possible.

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Need to locate o2 sensor location bank 1 sensor 2. I replaced the one on top nearest the radiator, but still getting o2 error code for a different one. Need to find its location on a Hyundai Accent 2000


You need to check two things.

First, there is a heat shield on top of the front of the motor where the o2 sensor you already replaced is. It's got (4) 12mm bolts. Remove it and check the exhaust manifold (big thing you put the o2 sensor into) for cracks. If there are any cracks, you'll get o2 sensor codes. Replace the manifold.

Second, if the manifold is fine start the car and listen to the exhaust pipe under the engine for leaks. Or if you already know the exhaust is loud... that's gonna do it too. A leaking exhaust pipe on an Accent will set secondary o2 sensor codes.

SHOULD you try to change it yourself, you will need a 7/8" wrench, and a new o2 sensor, or flex pipe, or manifold depending on what's broke. Do NOT touch the tip of the new or old o2 sensor to ANYTHING when you take it out or install it or it will be ruined permanently. Run the car until it's at it's normal operating temperature. Raise the vehicle, and take the o2 sensor out of the car (see below to understand which one) using the 7/8" wrench or if you got fancy and bought an 02 sensor tool... use it.

Replace whatever parts are bad (manifold or pipe) or just replace the sensor you need. Then restart the car and take it to a parts store and have them clear the code. The code (and check engine light) won't return right away, it usually takes a few days. If you did everything right you should be good. If not, it's not a terribly expensive job to have done and by now you should be able to explain to them what's wrong based on what you found when you looked at the car. Just tell them everything you checked and what you saw.

Education: I'm not sure where that half baked answer about o2 sensor 1 being near cylinder one came from but here's the real deal.

Sensor 1 is always BEFORE the catalytic converter
Sensor 2 is always AFTER the catalytic converter

Bank 1 and Bank 2 refer to which SIDE of the exhaust on 6 and 8 cylinder engines. Bank 1 is usually left side, Bank 2 is usually right side.

So... O2 sensor B1S1 refers to the O2 sensor BEFORE the converter on the LEFT side of the motor.

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1 Answer

2000 hundai accent engine light


sorry dealer only ,this information is not published ,go to dealer and lay the golden egg ----owing to complexity of the anti-theft systems and not allowing this information for general use to stop car theft ??well thats the excuse anyway .do you know a good solicitor who can sue them under the freedom of information act you have stateside .because in europe the problem is acute with no re -address.. .software encrypted so if you try to read it it just show anything with a general mechanics reader .are you preparing the golden egg ??ready for the dealer ??my advice if it runs ok leave well alone and throw you scan master or digisoft reader in the bin as it will not work on modern cars and the newer the car the less you can do with it.

Nov 18, 2008 | 2000 Hyundai Accent

1 Answer

O2 sensor location


What engine do you have? Does your car have a V6 or a four-cylinder? Regardless of the engine, you will have an O2 sensor after the catalytic converter. On a four cylinder you'll have one in the exhaust manifold as well. On a V6 you'll have one sensor between the engine and cat, and one after each cat as well. The sensor(s) before the cats determine your fuel mixture, and the after-cat sensor(s) are used to monitor the efficiency of the cat.

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