Ford Fiesta Mk7 Manifold Air Pressure MAP Sensor 1.25 Petrol 2S6A-9F479-CB

Ford Fiesta Mk7 Manifold Air Pressure MAP Sensor 1.25 Petrol is a precision intake system component responsible for accurate measurement of pressure in the intake manifold of petrol engines. A properly functioning MAP sensor allows the engine control unit to optimize fuel delivery and ensure stable engine operation. By choosing this component from the Air and fuel intake sensors group, you restore correct engine performance characteristics and reduce the risk of costly failures.

Specifications and technical data

• SKU: 1940807
• Mark: Ford
• Condition: Used
• OEM Part Number: 1940807
• Substitutable numbers: 2S6A-9F479-CB, 2S6A9F479CB, 1940807
• Fuel type: Petrol
• Part type: Sensor
• Category: Air Intake & Fuel Sensors

Purpose and function of the MAP sensor

The MAP pressure sensor in the Ford Fiesta Mk7 with a 1.25 petrol engine is responsible for measuring pressure in the intake manifold and transmitting this data to the engine control unit. Based on the sensor signal, the ECU determines the fuel dose, ignition timing, and engine operating strategy. A functional MAP sensor helps reduce excessive fuel consumption, improves throttle response, and stabilizes engine idle. In the event of symptoms such as power loss, jerking, or uneven idling, replacing the manifold pressure sensor is one of the fundamental diagnostic steps.

Benefits of using an original Ford sensor

The component designed for the Ford Fiesta Mk7 is engineered for the specific characteristics of the petrol engine, ensuring the correct measurement range and electrical compatibility with the factory ECU. This translates into:

• proper cooperation with factory ECU software,
• stable operating parameters across the full load range,
• reduced risk of diagnostic errors and check engine light activation. Additionally, using a component from the Air and fuel intake sensors group dedicated to Ford limits the need for adaptation or modification of the installation, which facilitates assembly and shortens repair time.

Technical characteristics and compatibility

The MAP sensor works with a petrol engine where precise control of the air-fuel mixture composition is crucial. Thanks to the appropriately selected voltage signal characteristics, the engine control unit receives reliable data on the current engine load. The product has an assigned OEM part number and interchangeable numbers, which facilitates compatibility verification using manufacturer catalogs or the VIN. In practice, this means the possibility of safely replacing the existing sensor with the offered component without interfering with the electrical harness or the intake manifold.

Component condition and installation aspects

The MAP pressure sensor is offered as a used part, which allows for an economical repair while maintaining the correct operating parameters of the intake system. Before installation, it is recommended to perform a standard check of the connection socket, seals, and vacuum lines to eliminate leaks that affect pressure readings. Replacing the sensor in a Ford Fiesta Mk7 usually does not require specialized tools – after disconnecting the electrical connector and fasteners, quick removal of the old component and installation of the new one is possible. After installation, it is worth performing computer diagnostics to clear any errors and verify current parameters.

Technical support and additional information

To better understand the relationship between MAP sensor operation and engine fueling, it is worth familiarizing yourself with issues related to the fuel system, selecting parts by OEM number, and diagnosing components that work with the ECU – this is described in more detail in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which helps organize service knowledge. If you are planning a comprehensive repair or upgrade of the engine area in your Ford and need other components from the same group, such as air temperature sensors, mass air flow sensors, or additional pressure sensors, check the available parts in the Ford air and fuel intake sensors category.