gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Instruments - GPS System Performance Degradation|Page 5658 > < Instruments - GPS System Performance Degradation|Page 5656
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EGR Valve: Description and Operation

Exhaust Gas Flow

EGR Valve Subassemblies

DESCRIPTION

The control module command exclusively operates the linear Exhaust Gas Recirculation (EGR) valve (1). The control module monitors the
following various engine parameters:

^

The Throttle Position (TP) sensor.

^

The Manifold Absolute Pressure (MAP).

^

The Engine Coolant Temperature (ECT) sensor.

Instruments - GPS System Performance Degradation|Page 5658 > < Instruments - GPS System Performance Degradation|Page 5656