Giulietta Mito Delta Intake Sensor

The sensor with original code 55238216 is a MAP (Manifold Absolute Pressure) sensor used in petrol and petrol/LPG engines produced by the FCA group. It is designed to measure the absolute pressure inside the intake manifold and, in some versions, also integrates the function of detecting the intake air temperature. This type of sensor is essential for calculating engine load and for optimized management of injection and ignition timing, especially on turbocharged engines.

Technical specifications

The 55238216 sensor has the following characteristics:

• Type: MAP sensor with optional integrated intake air temperature sensor
• Pressure range: up to approximately 5.5 bar absolute
• Output signal: digital or analog, depending on the ECU version
• Connector: 4-pin (power, ground, pressure signal, temperature signal)
• High-strength plastic body, with bayonet or screw mounting on the manifold
• Waterproof, protected from vibrations and electromagnetic interference

The sensor is designed to operate under harsh thermal and environmental conditions, ensuring accurate readings throughout the engine cycle.

DIPA offers a range of original and aftermarket spare parts of equivalent quality, as well as refurbished components with functionality equal to new.

Functions

The main functions of the 55238216 sensor include:

• Detection of absolute pressure in the intake manifold
• Indirect calculation of engine load based on the signal sent to the ECU
• Optimization of injection and ignition strategy, especially in LPG mode
• If equipped, measurement of intake air temperature, useful for calculating air mass and compensating for temperature variations

This component is essential to ensure correct combustion and compliance with emissions regulations.

Vehicle applications

Alfa Romeo

• MiTo

• Giulietta

Lancia

• Delta

DIPA recommends always verifying compatibility based on the specific engine code and the chassis number.

Common faults

• Incorrect pressure readings: cause timing shifts in injection and loss of power
• Failure of the integrated temperature sensor: leads to incorrect fueling strategies, especially during start-up or in LPG mode
• Check engine light on: triggered by out-of-range values or loss of signal
• Damaged or corroded connector: causes unstable or absent signal
• Internal sensor failure: often due to prolonged exposure to contaminants or excessive vibrations

Final conclusions

The MAP sensor with OE code 55238216 is a key electronic component in the management of turbocharged petrol and LPG engines of the FCA group. It is responsible for measuring manifold pressure and, in some versions, also intake air temperature. Proper functioning of this sensor is fundamental for performance, fuel consumption, and emissions.

DIPA provides the component new, original, and in aftermarket versions of equivalent quality ready for installation, with warranty and compatibility across all affected models. Ask for the availability of parts in stock for quick replacements and reduced vehicle downtime.