pontiac Workshop Repair Guides

Pontiac Workshop Service and Repair Manuals

EVAP Vacuum Switch <--> [Purge Flow Sensor, Evaporative System] > < Diagram Information and Instructions|Page 3860
Page 1
background image

EGR Valve Position Sensor: Testing and Inspection

If the PCM detects a pintle position signal voltage outside the normal range of the pintle position sensor, or a signal voltage that is not within a tolerance
considered acceptable for proper EGR system operation, the PCM will set DTC P1406. 

EVAP Vacuum Switch <--> [Purge Flow Sensor, Evaporative System] > < Diagram Information and Instructions|Page 3860