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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 278 (Engine Controls And Fuel - 3.6L (LGX LF4) - DTC P0117 (LGX) To DTC P0697) >> Diagnostic Information and Procedures >> DTC P0236: Turbocharger Boost Sensor Performance >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify that DTC P0237 or P0238 is not set.
    • If none of the DTCs are set 
  2. Verify the conditions listed below do not exist:
    • Loose clamps, cracks, or other damage in the air intake duct system.
    • Collapsed or restricted air intake duct system.
    • Restricted air filter.
    • Splits, kinks or improper connections at the vacuum hoses.
    • Missing, restricted or leaking exhaust components - Refer to Symptoms - Engine Exhaust .
    • Any vacuum leaks.
    • If a condition exists 

      Repair as necessary.

    • If none of the conditions exist 
  3. Replace the B111B Turbocharger Boost/Intake Air Temperature Sensor.
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