If you see the engine light on or the service engine soon warning light, the fault code P12A5 could be the culprit. This code is often caused by a faulty Manifold Absolute Pressure (MAP) Sensor, an open or shorted MAP Sensor harness, or a poor electrical connection in the MAP Sensor circuit.
Shop for New Auto Parts at 1AAuto.com this video to learn all about Manifold Absolute Pressure (MAP) sensors, and how
What Are The Signs Of a Failing MAP Sensor? As the MAP sensor fails, it can cause various issues with the fuel system and vehicle performance. An inaccurate reading from the sensor will cause
Symptoms: Engine not start; Acceleration is not good; Idle speed is unstable; Intermittent extinguishing Also Known as: Manifold Absolute Pressure Sensor, Engine Load Sensor, Pressure Sensor, Boost Sensor Be Accurate. Be Determined.
When idling, intake pressure usually ranges from 16-22 in. Hg. Because this is lower than atmospheric pressure, air rushes into the intake. When the driver uses the engine to brake, pressure can go as low as 10 in. Hg. Upon accelerating, however, the open throttle body allows air to rush in faster, increasing pressure in the intake.
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intake manifold pressure sensor symptoms
