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Home >> Pontiac >> 2006 >> Grand Prix GT >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 3.8L - DTC P0446 To P2108 >> DTC P1404 >> Circuit/System Verification
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Circuit/System Verification

With the ignition ON and the engine OFF, command the EGR from 0-100 percent. The EGR Position Sensor parameter should remain within 3 percent of the Desired EGR Position parameter.