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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 P2199 >> Component Testing

Component Testing

  1. Compare the resistance of the IAT 2 sensor to the temperature vs resistance table.
    • If the difference is more than 9 percent, replace the IAT 2 sensor.
  2. Compare the resistance of the IAT sensor to the temperature vs resistance.
    • If the difference is more than 9 percent, replace the IAT sensor.
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