Intake Pressure Sub-Tail Number

In modern engine management systems, precision is paramount. The Intake Pressure Sub-Tail Number is a critical identifier within a vehicle’s electronic control unit (ECU) coding, specifically related to the manifold absolute pressure (MAP) sensor or its associated circuit. This alphanumeric designation is far more than a simple part number; it represents a specific calibration profile tailored to the engine’s intake pressure characteristics. It ensures the ECU accurately interprets the voltage signal from the sensor, translating it into precise data for calculating air density and optimal fuel injection.

When sourcing a replacement MAP sensor or related component, matching the Intake Pressure Sub-Tail Number is essential for maintaining vehicle performance, fuel efficiency, and emissions compliance. An incorrect match can lead to the ECU receiving erroneous pressure readings. This may cause issues such as poor idle, hesitation, reduced power, increased fuel consumption, and trigger malfunction indicator lights. The sub-tail number accounts for subtle variations between different engine models, model years, and manufacturing batches, guaranteeing perfect compatibility.

For automotive technicians and DIY enthusiasts, locating and verifying this number is a crucial step in the parts procurement process. It is typically found in the vehicle’s service documentation, ECU data, or sometimes on the original component’s label. Our comprehensive catalog is indexed using these precise identifiers, allowing you to confidently select the correct part. By ensuring an exact match to your vehicle’s specified Intake Pressure Sub-Tail Number, you secure a seamless integration that restores factory-level engine management accuracy and reliability.