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### Descrição do Produto: Sensor de Oxigênio Denso 234-9123
O Sensor de Oxigênio Denso 234-9123, também conhecido como Sensor de Relação Ar e Combustível, é um componente essencial para otimizar o desempenho do seu veículo. Este sensor é projetado para garantir uma consumo de combustível eficiente, contribuindo para a economia e redução de emissões de poluentes. Com a construção em material durável, o Denso 234-9123 é capaz de suportar as condições adversas do ambiente automotivo, garantindo uma longa vida útil e confiabilidade.
Equipado com um eletrólito sólido de zircônia, este sensor é altamente sensível e preciso na detecção da quantidade de ar e combustível na mistura de gases de escape. Essa tecnologia avançada permite que o sensor forneça dados em tempo real para a unidade de controle do motor, otimizando a mistura ar-combustível e melhorando a eficiência do motor. O Denso 234-9123 é um fit universal, o que significa que pode ser instalado em uma ampla gama de veículos, tornando-o uma escolha versátil para mecânicos e entusiastas automotivos.
### Instruções de Uso:
Para instalar o Sensor de Oxigênio Denso 234-9123, siga os passos abaixo:
1. Desconecte a Bateria: Antes de iniciar a instalação, desconecte a bateria do veículo para evitar qualquer curto-circuito.
2. Localize o Sensor: O sensor de oxigênio geralmente está localizado no coletor de escape ou no tubo de escape. Consulte o manual do veículo para a localização exata.
3. Remova o Sensor Antigo: Utilize uma chave de soquete para remover o sensor de oxigênio antigo. Certifique-se de que o motor esteja frio para evitar queimaduras.
4. Instale o Novo Sensor: Coloque o Denso 234-9123 no lugar do sensor antigo e aperte-o firmemente, mas sem excessos.
5. Reconecte a Bateria: Após a instalação, reconecte a bateria e ligue o veículo para verificar se o sensor está funcionando corretamente.
### Características do Produto:
– Consumo de Combustível Eficiente: Melhora a eficiência do motor, resultando em menor consumo de combustível.
– Material Durável: Construído para resistir a altas temperaturas e condições adversas.
– Eletrólito Sólido de Zircônia: Proporciona medições precisas da relação ar-combustível.
– Detecção Avançada: Capaz de detectar a quantidade de ar e combustível na mistura de gases de escape.
– Fit Universal: Compatível com uma ampla gama de veículos, facilitando a instalação.
### Perguntas Frequentes (FAQ):
Pergunta: O Denso 234-9123 é compatível com meu veículo?
Resposta: O Denso 234-9123 possui um fit universal, o que significa que é compatível com muitos modelos de veículos. Consulte o manual do seu carro ou um mecânico para confirmação.
Pergunta: Como sei se meu sensor de oxigênio precisa ser substituído?
Resposta: Sinais de que o sensor pode precisar ser trocado incluem aumento no consumo de combustível, falhas no motor e luz de verificação do motor acesa.
Pergunta: A instalação do sensor é difícil?
Resposta: A instalação do Denso 234-9123 é relativamente simples e pode ser feita com ferramentas básicas. Siga as instruções de uso para garantir uma instalação correta.
Pergunta: Qual é a vida útil esperada do sensor?
Resposta: A vida útil do Sensor de Oxigênio Denso 234-9123 pode variar, mas geralmente é projetada para durar entre 60.000 a 100.000 km, dependendo das condições de uso.
Pergunta: O que fazer se o sensor não funcionar após a instalação?
Resposta: Se o sensor não funcionar corretamente após a instalação, verifique as conexões elétricas e certifique-se de que não há vazamentos no sistema de escape. Se o problema persistir, consulte um mecânico.
John B. Rogers –
it fit perfectly as far as the connector was identical oem. you want to only go with denso which is the oem supplier for subaru. price from this vendor is great, best i have seen anywhere. new at oreilly etc was $50 more cost! ck engine lite went out immed, car runs so much better as this going bad really messes up the fuel mixture- makes car run rich, so gas mileage is better and it runs way better, more power etc. this is the upstream 02 sensor, which is the one that takes the worst beating of the two 02 sensors in any vehicle. it should be replaced about every 80k miles, the downstream one can go longer. funny but my ck engine lights just got thrown, runs fine but something threw that, could be downstream sensor but car only has 90k miles so it should not be going bad this soon. supposed to go like 150k or more even because its downstream of the catalytic converter so it gets cleaner air and doesnt go down as fast as upstream which gets raw untreated exhaust. i did a ohm test on downstream and it was in spec, i did upstream prior to replacement and it was showing out of spec. ck engine analysis cemented the fact it needed replacement at about 90k mi, but actually the lite was throwing at about 84k. newer subarus are more sensitive to sensors, mine is a 2010. 2008 and older are not nearly as effected by sensor health as 2009 and newer.
Dawne –
Perfect fit!! Easy to install once old one is removed. Special removal tool is helpful…. I used the “Aoerzn Premium Offset Oxygen Sensor Socket, 3/8-Inch Drive, 7/8-Inch (22mm)”. Worked great.
Came with original Denso box (see pic) and enough copper anti-seize to do 3-4 sensors.
This is the EXACT part you would get from AutoZone. I know because I bought one there too because Amazon was super late in delivering and I needed to get it done.
Our car was throwing a P0031 code. I replaced BOTH sensors (which is recommended). Other sensor was a 234-4445. Soooo glad I replaced both because the car is more zippy now.
Note: Be careful removing the old sensor. If it won’t budge, the pipe may needed to be heated to a cherry red with a torch.
PS… If you find this comment helpful, please hit the “helpful” icon. Thx! 🙂
Amazon Customer –
I own a 2008 5MT Outback with over 200k. The car has been fantastic. For the last couple years I’ve been getting a random “Catalyzer below threshold” code. I thought it was time to replace the cat converter (not surprising giving the miles). But I decided to try the anti fouler bung on the O2 sensor. It worked for a while, but my check engine light kept coming back while in the highway, disabling my cruise control (some “lean condition” code. On these Subarus, and many newer cars, the downstream sensor (after the converter), is not only to check the efficiency of the converter but also has something to do with the fuel trim). I finally decided to replace both O2 sensors (the car well deserves new sensors after all these years), and sure enough, the check engine light has not returned, engine runs smoother, and I should expect some improvement in the fuel mileage.
So, if you’re on the same boat, replacing both O2 sensors quite probably will do the trick, and it’s way cheaper than the catalytic converter.
One last thing….as many people before me pointed out…don’t use cheaper sensors. These Denso ones are OEM, and work fine.
alberto omar tovar gonzalez –
i’m not recommended
it’s doesn’t work
bought it last year
and now have same issues
so disappointed
cheers
Tran Van Luong –
Fit my 07 Subie Outback and got rid of my CEL code. Easy to install and less than half the price of dealer part.
Scott R. –
Replaced the front A/F sensor with this OEM part, fit perfectly and works perfectly, spend the extra to have a quality name brand, I had previously purchased a non name brand, trying to save some cash, it lasted 1 week, it looked the same until I actually measured the 2 sensors, the no name was actually longer, and the car kept throwing codes, once replaced with the Denso sensor, no more codes
DesolationRow –
I first tried to use cheaper sensors but they did not work. I bought this and it fixed the car.
Dawne –
Direct replacement for 2006 Impreza (and many other models and years). First one leaked air through the stem right out of the box. Amazon took the return no problem.
Some installation tips: getting the old one out is the hardest part. They often get really baked in there. Removing the headers isn’t that hard, so if an offset O2 sensor socket doesn’t break it loose pretty easily, just pull the headers. If the old one comes out easily then this one should go in easily. If the old one needed a lot of persuasion, it would be smart to get a thread chaser and clean out the female threads before trying to thread this one in.
Once it’s installed, tape a shop vac hose on “blow” into the tailpipe to build up a little pressure in the system and spray any joints you messed with (o2 sensors, headers) with soapy water. Bubbles = leaks.
Amazon Customer –
Le quedó de maravilla a mi camioneta y la misma marca y el mismo modelo funcionó correctamente.
Fred Oliver –
I bought this as an upstream sensor for 2007 Subaru with a 2.5 liter engine to replace an original after 225,000 miles. It came with some copper anti-seize compound. It looked like the original with one important exception-the wire connector was different than the original one in my car. I checked the part number several times, and even ordered another one from my local parts store to check it-the numbers match but the connector is different. Perhaps there was a change made after my car was made. Because I needed to get my car back together, I cut the connectors off and swapped my original onto the new sensor-the wires are the same, so it was just a minor challenge, but cutting into an expensive part made me nervous. The sensor has worked well-no check engine light, and the scanner showed fast response and good fuel trims.
After almost 6 months and more than 10,000 miles, this is still working. There have been no error codes, fuel mileage is what I would expect and the engine runs great.
Update. Almost 2 years later the engine is still running strong, good fuel trim, no sensor-related check engine light.
Update. I got another one of these for another car, and in the process learned why I thought the connector was wrong. It has a plastic protective piece that I thought was part of the connector itself. Removal of the piece revealed the correct connector. That was a critical thinking problem on my part, and realizing the error of my ways has hopefully made me a better person in some small way.