Ford B-Max Fiesta Mk7 Lambda Oxygen Sensor 1.0 EcoBoost SFJA CV6A-9G444-AA

Ford B-Max Fiesta Mk7 Lambda Oxygen Sensor 1.0 EcoBoost SFJA is an original exhaust system component from the Lambda sensors and O2 sensors group, designed for petrol engines. It ensures precise measurement of oxygen content in exhaust gases, which allows the engine control unit to maintain stable operation, correct fuel dosage, and compliance with emission standards.

Specifications and technical data

• SKU: 1773164
• Mark: Ford
• Condition: Used
• OEM Part Number: 1773164
• Substitutable numbers: 1773164, CV6A-9G444-AA, CV6A9G444AA
• Fuel type: Petrol
• Category: Oxygen Sensors

Purpose and technical function

The presented lambda sensor has been designed to work with a petrol unit, where it is responsible for monitoring the air-fuel mixture composition. Based on the signal from the sensor, the controller adjusts the fuel dose, which translates into:

• stable engine operation across the full load range,
• efficient operation of the catalytic system,
• reduced fuel consumption while maintaining proper dynamics,
• reduction of harmful exhaust gas emissions. For petrol units, a properly functioning lambda sensor is crucial for maintaining the balance between performance and driving economy, as well as for protecting the catalytic converter from overheating and damage.

Benefits of using an original Ford sensor

Using a component from the Ford family ensures factory fitment to the exhaust system and the correct electrical signal characteristics. As a result, the engine controller receives reliable data, which minimizes the risk of mixture-related errors, such as rough idling or increased fuel consumption. The main advantages include:

• maintaining the operating parameters specified by the vehicle manufacturer,
• stable cooperation with the factory controller software,
• reducing the risk of incorrect readings typical of low-quality replacements,
• the ability to use the existing wiring and connectors without modifying the installation.

Operational characteristics and installation

The offered component comes from the group of used original parts, which allows for combining reasonable cost with maintaining proper operating characteristics. The sensor is intended for installation in the exhaust system, in the location designed by the vehicle manufacturer, using the factory thread and electrical connector. When replacing a lambda sensor, it is recommended to:

• check the condition of the thread in the manifold or exhaust pipe,
• inspect the electrical wiring for abrasions and contact corrosion,
• perform adaptation or clear errors in the controller after installation, if the service procedure requires it. This approach facilitates a quick return to correct engine operating parameters and limits the risk of repeated intervention in the system.

Professional selection and operation of lambda sensors

To fully utilize the potential of a lambda sensor, it is worth ensuring proper diagnostics and selection of the component relative to the specific vehicle configuration. Using manufacturer markings and catalog data is helpful, which allows avoiding problems with electrical and mechanical compatibility. If you want to better understand when choosing a used sensor makes sense, how to check compatibility by manufacturer markings, and how to prepare the component for installation, read the guide: Used automotive electronics – ECU modules and second-hand sensors.

Expanding the exhaust measurement system in a Ford

If you are planning a comprehensive repair or upgrade of the exhaust system area in your Ford and need other components from the same group, such as additional pre-catalytic sensors, post-catalytic sensors, or O2 sensors for other cylinders, check the available parts in the category Ford Lambda sensors and O2 sensors.