Hyundai: Engine D4FA. Manual — part 102
DIESEL CONTROL SYSTEM
FLA -279
Specification : When Electric EGR control valve does not operate 6% duty) at idle : 340mg/st ± 50 mg/st
When Electric EGR control valve operates(Approx. 50% duty) at idle : 200ms/st ± 50 mg/st
Fig.1
Fig.2
Fig.1) Check if "AIR MASS PERCYLINDER"l is 340mg/st
50mg/st without EEGR operation at warm idle
(Electric EGR control valve 6% duty)
Fig.2) Check if "AIR MASS PERCYLINDER"l is 200mg/st 50mg/st with EEGR operation at warm idle
(Electric EGR control valve approx. 50% duty)
Electric EGR control valae operates as decelerating after rapid acceleration when idle EEGR does not operate, Electric
EGR control valve operating duty decreases as time goes by. This controlling process lasts for about 3 min. and Electric
EGR control valve turns "OFF" (duty 6% ) after 3 min..
EGNG012R
TERMINAL AND CONNECTOR INSPECTION
E24B9677
Refer to DTC P0489.
POWER CIRCUIT INSPECTION
EF73F372
1.
Check power circuit voltage
1)
IG KEY "OFF", ENGINE "OFF".
2)
Disconnect Electric EGR control valve connector
3)
IG KEY "ON"
4)
Measure the voltage of terminal 2 of Electric EGR control valve connector
Specification : 11.5V~13.0V
5)
Is the measured voltage within the specification?
YES
▶ Go to "Control Circuit Inspection".
NO
▶ Repair E/R FUSE & RELAY BOX 15A INJ fuse and related circuit and go to "Verification of Vehicle Repair".
FLA -280
FUEL SYSTEM
CONTROL CIRCUIT INSPECTION
EF85A419
1.
Check control circuit monitoring voltage
1)
IG KEY "OFF", ENGINE "OFF".
2)
Disconnect Electric EGR control valve connector.
3)
IG KEY "ON".
4)
Measure the voltage of terminal 1 of Electric EGR control valve connector.
Specification : 3.2V~3.7V
5)
Is the measured voltage within the specification?
YES
▶ Go to "Component Inspection".
NO
▶ When voltage is not detected : Go to "2. Check open in control circuit" as follows.
▶ When high voltage is detected : Repair short to battery and go to "Verification of Vehicle Repair".
2.
Check open in control circuit
1)
IG KEY "OFF", ENGINE "OFF".
2)
Disconnect Electric EGR control valve connector and ECM connector.
3)
Check continuity between Electric EGR control valve terminal 1 and ECM connector terminal 59.
specification : Continuity ( below 1.0Ω )
4)
Is the measured resistance within the specification?
YES
▶ Repair short to ground and go to "Verification of Vehicle Repair".
NO
▶ Repair open in control circuit and go to "Verification of Vehicle Repair".
COMPONENT INSPECTION
EC8125C7
1.
Check Electric EGR control valve component resistance
1)
IG KEY "OFF", ENGINE "OFF".
2)
Disconnect Electric EGR control valve.
3)
Measure the resistance between EGR actuator component terminal 1 and 2.
Specification : 14.7 ~ 16.1Ω (20℃)
DIESEL CONTROL SYSTEM
FLA -281
EGNG005C
4)
Is Electric EGR control valve component resistance within the specification?
YES
▶ Go to "Verification of Vehicle Repair".
NO
▶ Replace Electric EGR control valve and go to "Verification of Vehicle Repair".
VERIFICATION OF VEHICLE REPAIR
E79C0411
Refer to DTC P0489.
FLA -282
FUEL SYSTEM
DTC P0501 VEHICLE SPEED SENSOR A RANGE/PERFORMANCE
COMPONENT LOCATION
E307EA1F
VSS
EGNG011R
GENERAL DESCRIPTION
E4220010
<M/T>
Vehicle Speed Sensor(VSS) is hall sensor type and senses the rotating speed of differential gear mounted on
transaxle.Comparing engine speed with vehicle speed calculated based on vehicle speed sensor signal, ECM recognizes
engaged gear.
And based on the information about engaged gear, ECM performs optimum fuel injection quantity
correction. VSS signal is also used in speed meter of cluster, aircon control module, BCM, etc.
<A/T>
Any seperate vehicle speed sensor is not installed in auto transaxle vehicle. Therefore, instead of using sensor signal, A/T
vehicle calculates vehicle speed through the signals from "INPUT SPEED SENSOR" and "OUTPUT SPEED SENSOR"
which are installed in auto transaxle.Through E152 connector terminal 53, vehicle speed which is calculated in TCM is
used at ECM, cluster, Aircon control module, BCM, etc.
DTC DESCRIPTION
E2EECC05
P0501 is set when 1)vehicle speed below 13.8Km/h is detected for more than 1 sec. at above 4000RPM and above 38.5
cc of fuel injection quantity or 2)above 240Kph is detected for more than 0.5 sec.
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