The manifold absolute pressure sensor, otherwise known as the MAP sensor, is used in an internal combustion engine's electronic control system. Usually employed for fuel-injected engines, a MAP sensor provides speedy and reliable manifold pressure information to the engine's electronic control unit (ECU). This, in turn, helps in determining the required fuel metering for maximum combustion. If your MAP sensor is busted, then you'll likely be in need of a new one to help your ride maintain its performance. Before making your purchase, however, be sure to properly survey the market. To help you get the best MAP sensor for your ride, here are some basic must-know info on this vital component.
MAP sensor types
- The typical MAP Sensor type does the most basic job of sensing pressure (vacuum) within the manifold. This is ideal for vehicles that do not have speed density fuel injection.
- Another type of MAP sensor is found in vehicles that do have speed density fuel injection. This kind of sensor helps the powertrain control module (PCM) in estimating air flow and monitor air changes in the manifold. We recommend you buy this sensor type.
MAP sensors have capability ranges, which are listed below.
- 1 Bar MAP sensor, which is used for naturally aspirated vehicles.
- 2 Bar MAP sensor (Up to 15 PSI of boost), which is used for forced induction vehicles (Turbo and Supercharged).
- 3 Bar MAP sensor can measure up to 30 PSI of boost for Turbo/ Supercharged vehicles
Most vehicles are naturally aspirated. Makes like Jaguar, SAAB, Subaru, Mitsubishi, and Nissan-and diesel-engine vehicles-come with Turbocharged models. So be sure to get a sensor that's compatible with your vehicle.
- Beck Anley
- AC Delco
- OES Genuine