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Home >> Cadillac >> 1994 >> DeVille Concours >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 4.9L >> Pcm Code Charts >> Code P038, Open Intake Air Temperature (IAT) Sensor >> Test Conditions
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Test Conditions

Codes P014 and P015 not set. Engine coolant temperature at 23°F (-5°C) or greater or if engine coolant temperature with ignition on is -13°F (-25°C) or less, warm engine for at least 15 minutes before testing for Code P038.