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Home >> Suzuki >> 1995 >> Swift Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Emission Systems & Sub-Systems >> Exhaust Gas RECIRCULATION (EGR) >> EGR System Test

EGR System Test

  1. To check system operation, place transaxle in Park (A/T) or Neutral (M/T). Apply parking brake.
  2. With coolant temperature less than 104°F (40°C), start engine and operate at high RPM. EGR valve diaphragm should not retract.
  3. Warm engine to normal operating temperature. Operate engine at high RPM. EGR valve diaphragm should retract and return on deceleration to normal idle.
  4. If EGR valve does not operate as specified, check for misrouted, restricted, clogged or deteriorated vacuum hoses. If vacuum hoses are okay, check EGR valve, EGR solenoid vacuum valve and EGR pressure transducer. See EGR VALVE, EGR SOLENOID VACUUM VALVE and EGR MODULATOR/EGR PRESSURE TRANSDUCER. See CODE NO. 51 chart in the TESTS W/CODES article for EGR system vacuum and wiring diagram.
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