DENSO Auto Parts Air / Fuel Ratio Sensor P/N:234-9074
DENSO Auto Parts 234-5029 air / fuel ratio sensor for the 2009-2015 Hyundai Sonata 4-cylinder 2.4L and other vehicles reports the exhaust air-fuel ratio to the engine computer. This DENSO Auto Parts air fuel ratio sensor is a heated, 5-wire wide-band unit for the upstream position.
A weak air / fuel ratio sensor can show up as a check engine light, rough running or poor fuel economy, but those signs have other possible sources. Before you replace the sensor, rule out damaged wiring and exhaust leaks near it, since either one can throw off the readings. The engine takes one, in the upstream position.
This direct-fit upstream sensor also covers the 2011-2016 Kia Optima 4-cylinder 2.4L and the 2011-2015 Kia Sorento 4-cylinder 2.4L, along with many other Hyundai and Kia models. Open the "Vehicles it fits" section to check your exact model and engine.
Fit and size
Build and materials
This part cross-references / interchanges with the following part numbers:
Is the DENSO Auto Parts 234-5029 sensor right for the 2011-2016 Kia Optima 4-cylinder 2.4L?
Yes. DENSO Auto Parts 234-5029 is an upstream air / fuel ratio sensor listed for the 2011-2016 Kia Optima 4-cylinder 2.4L. For another model, open the "Vehicles it fits" section and look up your exact car and engine.
How many wires does this wide-band air / fuel ratio sensor have?
It has 5 wires and a male connector. The wiring harness is 17.80 inches long.
What thread size does the DENSO 234-5029 sensor have?
The DENSO 234-5029 sensor has a thread diameter of 0.711 inch. It is a heated wide-band sensor for the upstream position.
What signs can point to a worn air / fuel ratio sensor?
Signs can include a check engine light, rough idle or poor fuel economy. A shop can test the sensor's readings to confirm it.
What protects the ceramic element inside this air / fuel ratio sensor?
A dual-layer shield protects the ceramic element, and a PTFE filter blocks contaminants. The housing is laser-welded stainless that resists corrosion.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.