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Home >> Hyundai >> 1993 >> Excel GS, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Tests W/Codes >> Diagnostic Tests >> Code 25 - Barometric Pressure Sensor Failure >> System Inspection
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System Inspection

Malfunctioning barometric pressure sensor can cause general poor engine performance. Ensure air filter is not clogged.