The MAP sensor, or the manifold absolute pressure sensor, is an essential component of the engine management system in the Honda Accord. Also, a MAP sensor is found in fuel-injected vehicles, and its primary function is to provide information about intake manifold pressure to the Powertrain Control Module (PCM/ECM).
Symptoms of a faulty MAP sensor can include: Malfunction Indicator Light (MIL) illumination Lean or rich air-fuel mixture Failed emissions test Poor fuel economy 1. Malfunction Indicator Light (MIL) Illumination A faulty MAP sensor may not provide accurate manifold pressure data instantaneously, or may provide incomprehensible data to the ECM.
The manifold absolute pressure sensor measures the pressure in the air intake manifold and sends this data to the engine control unit (ECU). The ECU uses this information to determine the air -fuel ratio for the combustion process , thereby influencing engine performance and efficiency.
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intake manifold pressure sensor symptoms
