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Home >> Chevrolet >> 2006 >> Chevy Express G2500, Van Cargo Extended, 6.6 2 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 6.6L (LLY) - DTC P0401 To DTC P268A >> DTC P2563 >> Repair Verification

Repair Verification

  1. With the engine at idle, observe the TC vane position sensor and the desired TC vane position in the TC data list. Slowly increase the engine speed from idle to 2,500 RPM, and slowly return the engine speed back to idle.
  2. The TC vane position parameter should remain near or equal to the desired TC vane position parameter.
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