Details

• Brand:

  

  

• SKU:

  DY-1152

• Positions: Rear Lower, Rear
• Other Names:

  Motorcraft™ Lower Oxygen Sensor, Sensor Exhaust Gas Oxygen

• Description:

  This genuine Motorcraft oxygen sensor, catalog number DY-1152, is the downstream heated exhaust gas oxygen sensor mounted after the catalytic converter, where it monitors converter efficiency by comparing the oxygen content of the post-catalyst exhaust to the readings from the upstream sensor. It sends a voltage signal to the powertrain control module that the module uses to confirm the catalyst is cleaning the exhaust and to fine-tune the long-term fuel trims. This sensor fits 2011-2019 Ford Fiesta models with the 1.6L four-cylinder engine. As the sensor ages or becomes contaminated it responds slowly, which commonly sets the check-engine light with catalyst-efficiency or oxygen-sensor codes such as P0136, P0137, P0138, P0140, or a P0420 catalyst code, and drivers may notice reduced fuel economy, a failed emissions test, or hesitation. Because the sensor is exposed to constant heat and exhaust byproducts, its switching accuracy degrades over time, so replacing it with the correct Motorcraft unit restores accurate catalyst monitoring and correct fuel trim. This is the original-equipment Motorcraft part listed by Ford as the exhaust gas oxygen sensor DY-1152, and it uses the factory connector and thread form for a direct fit. Apply anti-seize only to the threads if the sensor does not come pre-coated, avoid contaminating the sensor tip, torque it to specification, and clear stored codes after installation. Confirm the downstream location and connector against your vehicle before ordering.

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