DTC P0107: Manifold Absolute Pressure / Barometric Pressure Circuit Low Input; DTC P0108: Manifold Absolute Pressure / Barometric Pressure Circuit High Input: Description

The manifold absolute pressure sensor detects pressure inside the intake manifold as an absolute pressure with a built-in sensor and outputs a voltage. Based on the voltage from the manifold absolute pressure sensor, the ECM controls the EGR valve assembly, purge VSV, and corrects any errors in the pressure sensor due to changes in pressure.

Fig 1: Identifying Output Voltage To Manifold Absolute Pressure Graph

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DTC No.	DTC Detection Condition	Trouble Area
P0107	The output voltage from the manifold absolute pressure sensor less than 0.5 V for 0.5 seconds (1 trip detection logic).	Open or short in manifold absolute pressure sensor circuit Manifold absolute pressure sensor ECM
P0108	The output voltage from the manifold absolute pressure sensor more than 4.5 V for 0.5 seconds (1 trip detection logic).	Open or short in manifold absolute pressure sensor circuit Manifold absolute pressure sensor ECM

HINT:

When DTC P0107 or P0108 is detected, check the manifold absolute pressure by entering the following menus on the Techstream: Powertrain / Engine and ECT / Data List / MAP.

Manifold Absolute Pressure (kPa)	Malfunction
Approximately 0	Open in VC circuit Short in PIM circuit to ground Short in PIM circuit to E2 circuit
130 or more	Short in VC circuit to PIM circuit Open in PIM circuit Open in E2 circuit