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### Descrição do Produto
O Sensor de Relação Ar-Combustível Denso 234-9012 é uma solução de alta qualidade para otimizar o desempenho do seu veículo, especialmente projetado para modelos Toyota Sienna de 2004 a 2010. Com um design de encaixe direto e quatro fios, este sensor é aquecido, garantindo uma resposta rápida e precisa nas medições de mistura de ar e combustível. A eficiência no consumo de combustível é uma das principais vantagens deste produto, permitindo que seu motor opere de maneira mais eficaz, reduzindo emissões e melhorando a economia de combustível.
Com dimensões de embalagem de 4.826 cm de comprimento, 5.588 cm de altura e 14.986 cm de largura, e um peso de apenas 0,15 libras, o Denso 234-9012 é leve e fácil de manusear. Fabricado nos Estados Unidos, este sensor é um componente essencial para garantir que seu veículo funcione em sua capacidade máxima. A instalação é simples, sendo posicionado na parte traseira superior para os modelos de 2004 a 2006 e na parte superior direita para os modelos de 2007 a 2010 da Toyota Sienna.
### Instruções de Uso:
Para instalar o Sensor de Relação Ar-Combustível Denso 234-9012, 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: Identifique a posição correta do sensor no seu modelo de Toyota Sienna, conforme mencionado anteriormente.
3. Remova o Sensor Antigo: Desconecte o conector elétrico do sensor antigo e remova-o cuidadosamente.
4. Instale o Novo Sensor: Conecte o novo sensor Denso 234-9012 na mesma posição do sensor antigo, garantindo que esteja bem fixo.
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
– Tipo: Sensor de Relação Ar-Combustível
– Número de Fios: 4
– Aquecido: Sim, para melhor desempenho em temperaturas variadas
– Comprimento do Cabo: 7.09 polegadas
– Dimensões da Embalagem: 4.826 L x 5.588 H x 14.986 W (centímetros)
– Peso da Embalagem: 0.15 libras
– Origem: Estados Unidos
– Compatibilidade: Upstream Rear para Toyota Sienna (2004-2006) e Upstream Right para Toyota Sienna (2007-2010)
### Perguntas Frequentes (FAQ)
Pergunta: O Denso 234-9012 é compatível com outros modelos de veículos?
Resposta: Este sensor é especificamente projetado para os modelos Toyota Sienna de 2004 a 2010. Para outros veículos, recomenda-se verificar a compatibilidade.
Pergunta: Como posso saber se meu sensor de ar-combustível está com defeito?
Resposta: Sinais de um sensor defeituoso incluem aumento no consumo de combustível, falhas no motor e luz de verificação do motor acesa. Se você notar esses sintomas, a substituição do sensor pode ser necessária.
Pergunta: A instalação do Denso 234-9012 requer ferramentas especiais?
Resposta: Não, a instalação pode ser realizada com ferramentas básicas, como chaves de fenda e chaves de boca. No entanto, recomenda-se seguir as instruções do manual do veículo.
Pergunta: O que acontece se eu não substituir um sensor de ar-combustível defeituoso?
Resposta: Ignorar a substituição pode levar a um desempenho ruim do motor, aumento das emissões e até danos a outros componentes do sistema de combustível.
Pergunta: O sensor Denso 234-9012 vem com garantia?
Resposta: Sim, a Denso oferece garantia para seus produtos, mas é importante verificar os termos específicos da garantia no momento da compra.
Mike –
Tried a less expensive brand and they failed immediately or shortly after installation. these are OEM and work as such.
Boyler –
Bought this as a OEM replacement for a 2007 Toyota Sienna with the 2GR-FE engine. It had a P0031 which is Bank 1 Sensor 1 heater control circuit. The original sensor (164k miles) had a bad heater element internally. Denso is a OEM supplier for Toyota so I purchased this unit. This was an exact fit for the Sienna. It fits the pre-cat, rear bank (closest to firewall) exhaust manifold. You’ll need a 7/8″ O2 sensor socket and small arms to disconnect the electrical connector.
bayareay1111 –
2009 Toyota Sienna: P0031 HO2S Heater Control Circuit Low (Bank 1 Sensor 1)
Check Engine, VSC, Trac lights have been on, was not a loose gas cap (this time)
This sensor can be replaced from below. I used a 7/8” wrench and a pry bar.
– get the van up on ramps or jack stands
– disconnect the wire. I used a small flat screwdriver to spring the retaining tab.
– thread the closed end of the wrench over the wire, fiddle with the position till you can get some clearance. This took the most time. Finally I had a good line-up towards the front passenger wheel.
– I stuck a pry bar in from the wheel well area and pried against the frame. Got a nice creak of rusty metal and it was not hard to remove and install the new one.
Mike –
In short this was purchased to replace a O2 Bank 1 Sensor 1 on a 2007 Toyota Sienna HOWEVER the corresponding original attachment clip from the sensor to the car was updated to a “universal” clip that does not fit on the hard mounted receiver clip on the van. This was not made clear in the product description and thus I wasted my money on a non-returnable item. Buyer Beware!
Additionally when I called to speak to the Denso Technical Engineer – AVI MERON I was met with anger, hostility and ignorance as he stated “I don’t have to listen to you” and he refused to hear me out even though I discovered by going to Toyota Parts directly that Denso was selling the WRONG part. I want a REFUND, or The Correct Part and as for AVI MERON he should be disciplined as he is an embarrassment to Denso.
Dave –
I read some of the reviews here on Amazon to be sure this O2 sensor was for Bank 1 Sensor on my 2007 Toyota Sienna Sienna LE 3.5 Liter engine. And it is. Purchased this 234-9012 Denso seosor and put it on the Sienna. I then drove the Van a good 25 to 30 miles and the check engine light did not came back on so, so far this O2 sensor has worked. You will need the offset O2 Socket to remove this sensor, the socket is a 3/8 inch drive. Removing the sensor is a challenge to unplug and plug this sensor back in. Y ou will need a good bright flashlight to see up in the engine to see the plug /
connection, and a small screw driver to push the locking tab over on the plug’s electrical socket that is holding the plug of the sensor in the electrical socket. Be patient. Located up inside the engine above the cross frame. Look on youtube to see where this O2 sensor is located, and also download engine diagrams and you will find online that show where all four O2 sensors are located on the engine.
amazonbuyer –
my mechanic tested the old ones before he put the new ones in and they were still working just fine so I was able to return these and get my money back but really appreciated that the mechanic said these are really good parts. Thanks.
B. Fey –
Replaced old part! No more check engine light! Big thanks to youtube, a mechanic buddy for fixing it for me.
bayareay1111 –
The media could not be loaded.
UPDATE: I believe if you get a check engine light within a week or less of replacing this, you need to change your downstream sensor or replace your coils / spark plugs. This was documented on a youtube video I saw. I changed my downstream sensor and reseated my coil connectors and so far no code. My connector tabs broke off when replacing my spark plugs.
I just replaced this on a 2004 awd sienna.
Do this by removing y exhaust pipe from bottom. 6 bolts. After that there is plenty of room
Buy the more expensive sensor removal tool that sits near the bottom of the sensor and not the one that looks like a socket.
It will pop off easily.
It was a slight challenge getting my socket in there but with the right removal tool and firm pressure it comes out easily
Planter –
Queda a perfeccion.
Es la marca que recomienda toyota
Aunque el precio es alto. Es mas barato comprarlo aqui que en otras tiendas.. No compres otro que no sea denso vas a batallar,
Vincent D. Auber –
I was skeptical on whether Amazon was selling fake Denso sensors, and almost paid extra to buy it from OReilly’s. I did buy the other Oxygen Sensor from OReilly’s (needed the A/F and O2 sensor for Bank 1 of Toyota Sienna 2009.). When this one arrived, I carefully examined the box and the part and compared them to the Denso sensor I bought from O’Reillys. I am quite certain that the Amazon one was an authentic Denso part. I also compared it to the original sensor and they are the same (other than the original had an extra Toyota marking on it). I installed it in the vehicle and have had no trouble since (lights went out). The cord was exactly the same length as the sensor it replaced. I think those that claimed to short of a cord don’t know the difference between bank 1 and bank 2. On a Sienna, Bank 1 is the back side of the engine, toward the firewall, and Bank 2 is the side of the engine facing toward the front of the car. Since this is not common sense, some other reveiweres likely ordered the wrong part because they had their banks mixed up.