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Home >> Chevrolet >> 2007 >> Chevy Express G2500, Van Cargo, 6.6 6 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Control System & Fuel System - 6.6L (LLY) - DTC P0016 To DTC P0341) >> DTC P0101 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. If DTC P0102, P0103, or P0405 are set, diagnose these DTC first. Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
  2. Verify the integrity of the entire air induction system by inspecting for the following conditions:
    • Restrictions in the MAF air induction system and the turbocharger system
    • Restrictions in the exhaust system-Refer to Restricted Exhaust .
    • Leaks at the MAF/IAT sensor O-ring seal
    • Cracked or damaged MAF sensor housing
    • Restricted intake air duct or a dirty air filter element
    • Debris blocking the air sensing filaments of the MAF sensor
    • Snow or ice build-up in cold climates at the air cleaner, MAF, or MAP sensor do not exist.
  3. Engine running, observe the DTC information with a scan tool. DTC P0101 should not set.
  4. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame Records data.
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