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Home >> Chevrolet >> 2007 >> Chevy Express G2500, Van Cargo, 6.6 6 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Engine Control System & Fuel System - 6.6L (LLY) - DTC P0401 To DTC P2510) >> DTC P2199 >> Component Testing

Component Testing

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