Bosch Oxygen Sensor P/N:15290

Keep a close read on your engine's air-fuel ratio with the Bosch Oxygen Sensor 15290, a direct-fit replacement for the listed applications: the 2003-2008 Pontiac Vibe, 2003-2008 Toyota Corolla, and 2003-2008 Toyota Matrix. An oxygen sensor samples the oxygen content in the exhaust stream and sends a corresponding voltage signal to the engine control unit, which uses that feedback to adjust the air-fuel mixture toward the correct ratio.

• Air-fuel feedback: generates a signal from exhaust oxygen content so the ECU can trim fueling and help support normal combustion and emissions performance.
• Upstream or downstream position: cataloged for both the upstream (pre-converter) and downstream (post-converter) location on the listed applications — confirm which position your vehicle needs before ordering.
• Bosch replacement sensor: a screw-in oxygen sensor that threads into the exhaust bung and replaces the original to help maintain closed-loop fuel control on the vehicles above.

Signs an oxygen sensor may need replacing include an illuminated check engine light, reduced fuel economy, or a rough idle. Because these symptoms can have other causes, diagnose the fault first; if a failed oxygen sensor is the cause, this replaces it.

Manufacturer part number 15290.