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Common signs include a check engine light (P0130-P0167 codes), decreased fuel economy, rough idle, and failed emissions tests. Most oxygen sensors should be replaced every 60,000-100,000 miles.
Upstream (pre-catalytic converter) sensors monitor the air/fuel mixture going into the engine and help adjust fuel injection. Downstream (post-catalytic converter) sensors monitor catalytic converter efficiency.
Yes. Denso is one of the world's largest OEM auto parts manufacturers, supplying original equipment to Toyota, Honda, Chrysler, GM, Ford, and many other automakers.
Yes, oxygen sensor replacement is a moderate DIY job. You will need an oxygen sensor socket or wrench. Make sure the engine is cool before starting and apply anti-seize compound to the new sensor threads.
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This will not fit your 2006 Chevrolet Silverado 1500
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This DENSO automotive component is engineered to meet or exceed OEM specifications for reliable performance and long service life.

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