20964159 GM Air pressure sensor

What is this part?

The GM air pressure sensor 20964159 is a genuine OEM engine management component designed to measure air pressure in the intake system. This sensor is commonly known as a MAP (Manifold Absolute Pressure) sensor and plays a key role in engine control.

What does it do?

This OEM air pressure sensor monitors intake air pressure and sends data to the engine control unit (ECU). Based on this information, the ECU adjusts fuel injection and ignition timing for optimal engine performance. A genuine GM air pressure sensor helps maintain proper air-fuel mixture, stable idle, efficient fuel consumption, and reduced emissions. Accurate sensor readings are essential for smooth engine operation.

When to replace

The GM air pressure sensor 20964159 should be replaced if symptoms such as poor acceleration, unstable idle, increased fuel consumption, engine warning lights, or fault codes related to air pressure are present. Sensor contamination, internal failure, or wiring issues can lead to incorrect readings. Using an OEM replacement sensor helps restore proper engine control.

Compatibility

The genuine GM air pressure sensor 20964159 is compatible with selected GM vehicles. This OEM engine sensor is manufactured to factory specifications, ensuring correct fitment, signal accuracy, and long-term reliability. Compatibility may vary depending on engine type and model year. Please verify the part number 20964159 before purchase.

Installation: DIY or service?

Installation of this genuine OEM GM air pressure sensor 20964159 is often suitable for DIY and requires minimal tools. Professional installation is recommended if sensor calibration or diagnostics are required