Component Inspection
1.

Check for open in EGR solenoid valve

(1)

Ignition "OFF".

(2)

Disconnect EGR connector.

(3)

Measure resistance between terminal 1 and 2 of EGR solenoid valve connector.

Specification : 14 ~ 17 Ω (20°C)

(4)

Is the measured resistance within specifications ?

YES

▶ Go to "Check EGR solenoid operation" as below.

NO

▶ Check EGR solenoid for contamination, deterioration, or damage. Substitute with a known-good EGR and check for proper operation. If the problem is corrected, replace EGR and then go to "Verification of Vehicle Repair" procedure.

2.

Check EGR solenoid valve operation

(1)

Ignition "ON" & Engine "ON".

(2)

Confirm that EGR solenoid valve Duty is 5% after warming-up Engine.

(3)

Be sure that vacuum is felt after disconnecting vaccum hose from EGR solenoid valve.

(4)

Check that vacuum is felt in idle after sudden accelleration(EGR solenoid valve Duty : 95%)

EGR DUTY : 5%

EGR DUTY : 95%

No Vaccum

Vacuum

(5)

Is the vaccum felt from vaccum hose according to EGR DUTY ?

YES

▶ Substitute with a known-good ECM and check for proper operation. If the problem is corrected, replace ECM and then go to "Verification of Vehicle Repair" procedure.

NO

▶ Check EGR solenoid for contamination, deterioration, or damage. Substitute with a known-good EGR and check for proper operation. If the problem is corrected, replace EGR and then go to "Verification of Vehicle Repair" procedure.

Яндекс.Метрика