buick Workshop Repair Guides

Buick Workshop Service and Repair Manuals

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MAP - Revised Chart C-1D, DTC's 33, 34, 63, 64|Page 252 > < MAP - Revised Chart C-1D, DTC's 33, 34, 63, 64|Page 250

Skyhawk L4-121 2.0L (1986)

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Manifold Pressure/Vacuum Sensor: Testing and Inspection

Fig. 106 - Wiring Diagram for Chart C-1D MAP Output Check. VIN Z

CHART C-1D

MAP OUTPUT CHECK

2.0L "J" SERIES

FUEL INJECTION (TBI)

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

MAP - Revised Chart C-1D, DTC's 33, 34, 63, 64|Page 252 > < MAP - Revised Chart C-1D, DTC's 33, 34, 63, 64|Page 250