Autopart International 1904-604703 Manifold Absolute Pressure MAP Sensor

The Autopart International 1904-604703 is a Manifold Absolute Pressure (MAP) sensor designed for precise monitoring of intake manifold pressure in modern fuel-injected engines. This sensor plays a critical role in the engine management system by measuring the pressure inside the intake manifold and converting it into an electrical signal for the engine control unit (ECU).

Key Features:

• Monitors intake manifold vacuum and atmospheric pressure
• Provides real-time data to the ECU for accurate fuel delivery calculations
• Helps optimize air-fuel mixture ratios based on engine load
• Essential for proper engine performance, fuel efficiency, and emissions control
• Direct replacement sensor for OEM specifications

The MAP sensor works in conjunction with other engine sensors to ensure the ECU can properly calculate air density and mass airflow rate. This information is crucial for determining the correct amount of fuel injection, ignition timing, and maintaining optimal combustion efficiency. A properly functioning MAP sensor helps prevent issues such as rough idle, poor acceleration, decreased fuel economy, and increased emissions.