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Home >> GMC >> 1991 >> Value Van 7.4 N >> Repair and Diagnosis >> External Pages >> Different car >> Section 43 (Engine Controls - Tests W/Codes - 8.0L) >> Self-Diagnostic Tests >> Test NTC-16A - Checking Intake Air Temperature System

Test NTC-16A - Checking Intake Air Temperature System

WARNING: This page is about a different car, the 1995 Dodge Pickup and 1995 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ensure engine is off and ignition is on. Using scan tool, read Intake Air Temperature (IAT) sensor temperature. Record reading. Turn ignition off. Go to next step.
    NOTE: Perform following step within 5 minutes of preceding step.
  2. Remove IAT sensor. Using a temperature probe, measure temperature in IAT sensor opening. Record reading. If temperature readings are not within 10°F (-12°C) of each other, replace IAT sensor. Perform TEST VER-2. If temperature readings are within 10°F (-12°C) of each other, reinstall IAT sensor. Test is complete.