Bosch Fuel Injection Manifold Pressure Sensor

Bosch Manifold Absolute Pressure Sensors: OE Precision You Can Trust

When your engine's control unit needs to know exactly what's happening inside the intake manifold, it relies on a Fuel Injection Manifold Pressure Sensor — commonly called a MAP sensor. Bosch is one of the most recognized names in this space, and for good reason: the company supplies sensors directly to vehicle manufacturers around the world, meaning the replacement part you install often comes from the very same engineering lineage as the one that rolled off the factory floor.

Bosch MAP sensors are designed around a core principle of accuracy. Bosch Manifold Absolute Pressure (MAP) Sensors provide accurate air pressure measurement to very fine tolerances for efficient engine performance. That precision matters because the engine control unit calculates the exact pressure and temperature of the intake air using information from the inlet manifold and boost-pressure sensor, feeding that data directly into fuel delivery calculations. Any drift or inaccuracy in the sensor ripples through to fuel trim, throttle response, and emissions output.

What Sets Bosch MAP Sensors Apart

Bosch's edge in this category comes from a combination of build quality, chip technology, and OE heritage. The extremely sturdy sensor design employs a special coating that provides resistance to harmful chemicals inside the intake manifold, which is critical given the hot, chemically active environment sensors must endure over hundreds of thousands of miles. Bosch continually improves its MAP sensor designs with the latest chip technology to keep pace with increasingly sophisticated engine management systems.

Perhaps most importantly, all Bosch sensors are built to the same Original Equipment (OE) specifications as those produced for vehicle manufacturers to ensure proper system functionality and restoration of vehicle performance. This means OE-identical connector ports and attachment points — no adapting, no guesswork, and no risk of miscalibration right out of the box.

Bosch's MAP sensor lineup also extends into higher-demand applications. The boost pressure sensor with temperature sensor is installed in the air inlet pipe between the turbocharger and engine, and measures the absolute pressure, making Bosch's offering relevant to both naturally aspirated and turbocharged platforms. The sensor helps control the fuel quantity while simultaneously reducing raw emissions, a dual benefit that matters whether you're chasing efficiency or passing a smog inspection.

Broad Vehicle Coverage

Bosch MAP sensors cover an exceptionally wide range of vehicles. Their catalog spans European marques like Audi, Volkswagen, Volvo, Porsche, and Alfa Romeo, as well as domestic platforms including Chevrolet, Buick, Cadillac, GMC, and Chrysler products — and even powersports applications like Sea-Doo personal watercraft. Bosch sensors are designed to meet or exceed your vehicle's original equipment specifications for performance, driveability, economy, and emissions. Always verify fitment by engine type, as the correct sensor selection can depend on engine variant as well as model year.

Long recognized as an industry leader in ignition and fuel systems, Bosch's quality, innovation, and experience are the foundation of the entire line of engine management components. Whether you're restoring stock performance after a check engine light or sourcing a reliable OE-spec part for a maintenance refresh, Bosch manifold pressure sensors represent a well-proven choice.