MAP Sensors (Manifold Absolute Pressure)

What Does a MAP Sensor Do?

The manifold absolute pressure (MAP) sensor measures the air pressure inside the intake manifold and sends this data to the ECU. The ECU uses manifold pressure to calculate air density and determine the correct amount of fuel to inject for the current engine load. On turbocharged engines, the MAP sensor also monitors boost pressure. Vehicles use either a MAP sensor or a MAF sensor (or both) for load calculation - your vehicle service manual will confirm which system your engine uses.

Symptoms of a Failing MAP Sensor

A faulty MAP sensor sends incorrect pressure data to the ECU, disrupting fuel delivery and ignition timing. Common symptoms include:

• Poor acceleration or loss of power
• Rough idle or engine surging
• Increased fuel consumption
• Black smoke from the exhaust - engine running rich
• Boost pressure issues on turbocharged engines
• Check Engine light with codes P0105 to P0109

Fitment and Technical Accuracy

MAP sensors vary in pressure range, signal output type, connector configuration, and mounting location between naturally aspirated and turbocharged applications. A sensor with the wrong pressure range will produce incorrect load calculations across the full RPM range. Every sensor in our range is matched to OEM specifications. Use the Vehicle Part Finder to confirm fitment before ordering.

Why Buy From SensorGal?

SensorGal is a 100% Australian owned family business stocking aftermarket OEM replacement MAP sensors for Toyota, Holden, Ford, Mitsubishi, Nissan, Hyundai, Kia, BMW, Mazda, Subaru, Mercedes-Benz and Suzuki. Orders placed before 12 noon are dispatched same day from our Cranbourne VIC warehouse via express post. All parts carry a 1-Year Australian warranty and our no-fuss returns policy.