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Home >> Pontiac >> 2008 >> G8 GT >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 6.0L - DTC P0336 To DTC P250A >> DTC P1400 >> Circuit/System Verification
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Circuit/System Verification

  1. Allow the engine to cool.
  2. Start and idle the engine for at least 2 minutes.
  3. DTC P1400 should run and pass.
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