Manifold Absolute Pressure (MAP Sensors)
High-tech, OE quality sensors
High-tech, OE quality sensors
The Manifold Absolute Pressure Sensor (MAP sensor) is one of the sensors used in a vehicle’s electronic control system (ECU). Engines that use a MAP sensor are typically fuel injected. The MAP Sensor sensor provides instantaneous manifold pressure information to the engine’s computer (ECU). The data is used to calculate air density and determine the engine’s air mass flow rate, which determines the required fuel metering for optimum combustion and influences the advance or retard of the ignition timing. A faulty Map Sensor can cause a vehicle to run rich or lean, which will affect the vehicle’s ignition timing and cause the engine not to run smoothly.
What does the Manifold Absolute Pressure Sensor do?
The sensor provides instant manifold pressure information to the engine’s electronic control unit. The data is used to calculate air density and determine the engine’s air mass flow rate, which in turn determines the required fuel delivery for perfect combustion.
Where is the Manifold Absolute Pressure Sensor Located?
The MAP sensor is typically located on the intake manifold, either next to or on the throttle body itself. (On a forced-induction engine, the MAP sensor can be found on the intake tract before the turbo.
Will a malfunctioning Manifold Absolute Pressure Sensor cause a check engine light?
Signs of a Broken MAP Sensor. MAP sensor problems could trigger a DTC and check engine light.
What are the common causes of failure?
MAP sensors fail by getting clogged, contaminated, or damaged. Sometimes, engine heat “overcooks” the MAP sensor’s electronics or cracks vacuum lines.
How to determine if a Manifold Absolute Pressure Sensor is failing?
What makes Holstein Parts Manifold Absolute Pressure Sensor the Best:
Product Spotlight
Parts That Perform. Service That Delivers.
2690 S. HWY 95A CANTONMENT, FL 32533
PHONE: (800) 893-8299
FAX: (850) 610-7433
© 2025 Holstein Parts. All rights reserved.
Parts That Perform. Service That Delivers.
PHONE: (800) 893-8299
FAX: (850) 610-7433
© 2025 Holstein Automotive Group. All rights reserved.