pontiac Workshop Repair Guides

Pontiac Workshop Service and Repair Manuals

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EVAP Purge Vacuum Switch <--> [Purge Flow Sensor, Evaporative System] > < EGR Pintle Position Sensor <--> [EGR Valve Position Sensor]|Locations|Page 1377

Grand Prix V6-3.8L SC VIN 1 (1997)

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EGR Pintle 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 Purge Vacuum Switch <--> [Purge Flow Sensor, Evaporative System] > < EGR Pintle Position Sensor <--> [EGR Valve Position Sensor]|Locations|Page 1377