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Home >> Mazda >> 2005 >> 3 i, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Symptom Troubleshooting [Engine] >> Engine Control System Operation Inspection >> Intake Manifold Vacuum Inspection >> Specification (L3)
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Specification (L3)

ATX: More than 57 kPa {428 mmHg, 17 inHg} 

MTX: More than 60 kPa {451 mmHg, 18 inHg} 

NOTE:
  • Air suction can be located by engine speed change when lubricant is sprayed on the area where suction is occurring.
    • Air suction at throttle body, intake manifold and PCV valve installation points
    • EGR valve (stuck open)
    • Fuel injector insulator
    • Engine compression

      (See COMPRESSION INSPECTION .)