chevrolet Workshop Repair Guides

Chevrolet Workshop Service and Repair Manuals

Manifold Absolute Pressure (MAP) Sensor|Page 187 > < Manifold Absolute Pressure (MAP) Sensor|Page 185
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Manifold Pressure/Vacuum Sensor: Testing and Inspection

Fig. 107 - Wiring Diagram for Chart C-1D MAP Output Check. VIN P

CHART C-1D

MAP OUTPUT CHECK

4.3L ENGINE

FUEL INJECTION (TBI)

    The Manifold Absolute Pressure (MAP) sensor measures manifold pressure (vacuum) and sends that signal to the ECM. The ECM uses this
information for fuel and spark control.

Manifold Absolute Pressure (MAP) Sensor|Page 187 > < Manifold Absolute Pressure (MAP) Sensor|Page 185