Details

• Brand:

  

  

• SKU:

  GU2Z-9G444-A

• Other Names:

  Oxygen Sensor, Lower Oxygen Sensor, Upper Oxygen Sensor, Rear Oxygen Sensor, Ft Oxygen Sensor, Sensor Exhaust Gas Oxygen, dy1401

• Description:

  The 2007 Ford Escape is fitted with four separate oxygen (O2) sensors. These small electronic devices are screwed into the vehicle's exhaust system before and after the catalytic converter.

  The two O2 sensors between the engine and the cat converter the upstream sensors. There is one for the left-side cylinders (bank 1) and one for the right (bank 2). They relay information to the ECU (engine control unit) regarding the oxygen content of the exhaust as it exits the exhaust manifold. The computer uses this data to regulate the air/fuel mixture being sent to the combustion chambers and to adjust spark timing for optimal combustion.`

  The downstream O2 sensors, located aft of the catalytic converter, send data to the ECU related to the oxygen content of exhaust gases after they have run through the cat converter. This information lets the computer know how effectively the catalytic converter is doing its job of reducing hazardous toxins in the vehicle's exhaust.

  Faulty O2 sensors can cause increased emissions, poor engine performance and increased fuel consumption. Replace faulty sensors with genuine Ford parts (OEM) for best results. Contact Blue Springs Ford Parts at 800-248-7760 for assistance or order online at wholesale prices.

• Replaces:

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