DTC P0107 - MAP SENSOR CIRCUIT LOW VOLTAGE Pontiac Firebird IV

Note. For circuit reference, see the appropriate WIRING DIAGRAMS article. For connector and terminal identification, see CONNECTOR IDENTIFICATION .

Circuit Description

Manifold Absolute Pressure (MAP) sensor measures changes in intake manifold pressure (vacuum). A low voltage signal, about 2 volts, is sent to PCM on signal circuit at closed throttle (high vacuum) idle. A high voltage signal, about 4 volts, is sent at wide open throttle (low vacuum).

Conditions for setting DTC

1. No TP sensor related DTCs present.
2. Engine running.
3. TP sensor angle greater than 0% with engine speed less than 1000 RPM, or greater than 6% with engine speed greater than 1000 RPM.
4. MAP sensor signal voltage less than 0.1 volt.
5. Conditions present for greater than 67 crankshaft revolutions.