DENSO Auto Parts Oxygen Sensor P/N:234-4945
Keep your downstream exhaust feedback signal accurate with the DENSO Oxygen Sensor 234-4305. This heated, narrow-band 4-wire sensor drops in as a direct-fit replacement for the 2009-2010 Pontiac Vibe (L4-1.8L), 2009-2013 Toyota Corolla (L4-1.8L), and 2009-2014 Toyota Matrix (L4-1.8L). Mounted in the downstream position, it reads the oxygen content in the exhaust after the catalytic converter so the ECU can monitor converter operation and manage fuel trim.
Manufactured and tested to strict OE standards for exact replacement and a first-time fit. Made in Japan. If a failed downstream oxygen sensor is the cause of your check-engine light or converter-efficiency code, this replaces it; diagnose the cause before ordering.
Interchange: 213-4292 · 2134292 · 18011 · 18013 · ES20372 · 88975493 · 24841 · 8946502330 · 8946512840 · 250-24188 · 25024188 · 350-34282 · 35034282
Manufacturer part number 234-4305 (also 2344305).
This part cross-references / interchanges with the following part numbers:
Which vehicles does the DENSO 234-4305 fit?
It is a direct-fit replacement for the 2009-2010 Pontiac Vibe, 2009-2013 Toyota Corolla, and 2009-2014 Toyota Matrix, all with the L4-1.8L engine. See the Buyer's Guide tab to confirm your vehicle.
What position is this oxygen sensor?
This is a downstream sensor, mounted after the catalytic converter. It reads exhaust oxygen content so the ECU can monitor converter operation.
Is this a heated oxygen sensor?
Yes. It is a heated, narrow-band 4-wire sensor with a male connector, threaded mount, and a 31.1 in wiring harness.
What does a downstream oxygen sensor do?
It measures the oxygen in the exhaust after the catalytic converter, giving the ECU the feedback it needs to monitor converter efficiency and support fuel-trim management.
What are signs this sensor may need replacing?
A check-engine light, a converter-efficiency trouble code, or erratic fuel trim can be signs. These symptoms have other causes, so diagnose before replacing.
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.