Give the engine's fuel management the precise exhaust feedback it needs with the DENSO Air/Fuel Ratio Sensor 234-9009. This wide-band, 4-wire heated sensor is a direct-fit replacement for the 1997-1999 Toyota Avalon, 1998-2000 Toyota Camry, 2001-2003 Toyota Highlander, 1999-2000 Toyota Sienna, 1999-2000 Toyota Solara, 1998-1999 Lexus ES300, and 1999-2003 Lexus RX300 — all with the V6-3.0L engine. It measures the oxygen content in the exhaust and reports the air-fuel ratio to the engine control module, which uses that signal to adjust fuel delivery.
Signs this sensor may need replacing include an illuminated check engine light, rough idle, or reduced fuel economy — if a failed air/fuel ratio sensor is the cause, this replaces it. Diagnose the cause before ordering, since those symptoms can have other sources. This listing is for one sensor; quantity varies by application (some, such as the Lexus RX300 and Toyota Highlander, use two). Country of origin: United States.
Manufacturer part number 234-9009.
This part cross-references / interchanges with the following part numbers:
What does the DENSO 234-9009 air/fuel ratio sensor do?
It measures the oxygen content in the exhaust and reports the air-fuel ratio to the engine control module, which uses that signal to adjust fuel delivery.
What vehicles does this sensor fit?
It's a direct-fit replacement for the 1997-1999 Toyota Avalon, 1998-2000 Camry, 2001-2003 Highlander, 1999-2000 Sienna and Solara, 1998-1999 Lexus ES300, and 1999-2003 RX300 with the V6-3.0L engine.
How many sensors do I need?
This listing is for one sensor. Quantity varies by application — some, like the Lexus RX300 and Toyota Highlander, use two — so check the Buyer's Guide for your vehicle.
What are signs the air/fuel ratio sensor may need replacing?
Common signs include an illuminated check engine light, rough idle, or reduced fuel economy. Diagnose the cause first, since these symptoms can have other sources.
How is this sensor configured?
It's a wide-band, 4-wire heated sensor with a male connector, a 14.17-inch wiring harness, and a 0.711-inch thread diameter.
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.
