Hyundai Santa Fe (2006 year). Manual — part 635
FLA -606
FUEL SYSTEM
▶ Clog or contamination of intake manifold or injectors caused by foreign materials
▶ Check vaccum hose connected to surge tank is normal.
2)
Has a problem been found ?
YES
▶ Repair or replace as necessary and then, go to "Verification of Vehicle Repair"procedure.
NO
▶ Go to "Check Fuel Pressure" as follows
2.
Check Fuel Pressure.
NOTE
-
Be cautious that Fuel is explosive and an empty fuel tank can still contain explosive gases.When working on fuel
system make sure to supply adequate ventilation to the work area. Do not smoke, and keep sparks and open
flames away.
-
The fuel system remains under pressure when the engine is not running. Release fuel system pressure before
disconnecting any fuel line to reduce the chance of presonal injury or fire damage to vehicle components.
1)
Start the engine and disconnect the fuel pump relay.
2)
Wait until fuel in fuel line is exhausted and the engine stalls.
3)
Turn the ignition switch OFF position.
4)
Install the special service tool for measuring the fuel pressure between the delivery pipe and the fuel feed hose.
5)
Connect the fuel pump relay.
6)
With fuel pressure applied, check the three is no fuel leakage from the fuel pressure gauge or connection part.
7)
Start the engine and measure the fuel pressure at idle.
Specification : 374 ~ 384 kpa (3.82 ~ 3.92 kg/㎠, 54.3 ~ 55.8psi)
8)
Stop the engine and check for a change in the fuel pressure gauge reading.
Specification : After engine stops, the gauge reading should hold for about 5 minutes.
9)
Is the measured fuel pressure within specification?
YES
▶ Go to "Component Inspection"procedure.
NO
▶ Repair or replace according to the table below, And then go to " Verification of Vehicle Repair" procedure.
DTC TROUBLESHOOTING PROCEDURES
FLA -607
Condition
Possible Cause
Suspected area
Clogged filter
Fuel filter
Fuel pressure too low
Fuel leak on the fuel-pressure
regulator that is assembled on fuel
pump because of poor seating of
the fuel-pressure regulator
Fuel pressure regulator
Fuel pressure too high
Sticking fuel pressure regulator
Fuel pressure regulator
Fuel pressure drops slowly after
engine is stopped
Injector leak
Injector
Fuel pressure drops immediately
after engine is stopped
The check valve within the fuel
pump is open
Fuel pump
COMPONENT INSPECTION
E9FE482D
1.
Check PCV
1)
IG "OFF".
2)
Remove PCV valve and then, check that plunger in the PCV is moving.
3)
Is the PCV normal ?
YES
▶ Go to "Check PCSV" as follows.
NO
▶ Substitute with a known-good PCV and check for proper operation. If the problem is corrected,replace PCV
and then go to "Verification of Vehicle Repair" procedure.
2.
Check PCSV
1)
IG "OFF".
2)
Remove PCSV and Vaccum Hose
3)
Check that PCSV is just one way solenoid valve
4)
Is the PCSV normal ?
YES
▶ Go to "Check injector" as follows.
NO
▶ Substitute with a known-good PCSV and check for proper operation. If the problem is corrected,replace PCSV
and then go to "Verification of Vehicle Repair" procedure.
3.
Check injector
1)
IG "OFF"
2)
Remove injector.
3)
Check that injector hole is clogged by foreign materials.
FLA -608
FUEL SYSTEM
4)
Measure resistance between terminal 1 an 2 of injector connector.(Component Side)
SPECIFICATION :
Temp.
Resistance
20℃ (68℉)
13.8 ~ 15.2Ω
1. Injector Power
2. Injector Control
2
1
2
1
C37-1,3,5
C37-2,4,6
SCMF16425L
5)
Is the measured resistance within specification ?
YES
▶ Go to "Check component related to fuel trim" as follows.
NO
▶ Substitute with a known-good injector and check for proper operation. If the problem is corrected,replace
injector and then go to "Verification of Vehicle Repair" procedure.
4.
Check component related to fuel trim
1)
Check component related to fuel trim such as HO2S, MAFS,MAPS, TPS, ECTS, PCSV and Injectores) - Refer
to each designated trouble shooting guide.
2)
Are those component related to fuel trim O.K ?
YES
▶ Substitute with a known-good PCM and check for proper operation. If the problem is corrected,replace PCM
and then go to "Verification of Vehicle Repair" procedure.
NOTE
There is a memory reset function on scantool that can erase optional parts automaticallydetected and memorized by
PCM.
NO
▶ Repair or replace as necessary and then, go to "Verification of Vehicle Repair" procedure.
VERIFICATION OF VEHICLE REPAIR
E4DF84FC
Refer to DTC P2187.
DTC TROUBLESHOOTING PROCEDURES
FLA -609
DTC P2195 HO2S SIGNAL STUCK LEAN (BANK 1 / SENSOR 1)
COMPONENT LOCATION
E74F8321
HO2S [Bank 1/Sensor 1]
LGLG504A
GENERAL DESCRIPTION
E72A34C4
In order to control emissions of the CO, HC and NOx components of the exhaust gas, heated oxygen sensor (HO2S),
mounted on the front side and rear side of catalytic converter, detects the oxygen content in the exhaust gas. The front
HO2S signal is used to control air/fuel ratio (closed loop fuel control) and the rear HO2S signal is used to monitor front
HO2S and catalyst for proper operation. The HO2S requires a minimum temperature to operate properly and provide a
closed loop fuel control system. The HO2S contains the heater element to reduce its warming-up time and ensure its
performance during all driving conditions. The oxygen sensor generates a voltage that indicates the difference between
the oxygen content of the exhaust stream and the oxygen content of ambient air. When the exhaust stream is “ rich,”
there is more oxygen in the ambient air than in the exhaust stream, so the voltage will be higher.
DTC DESCRIPTION
E622C1AE
Checking output signals from HO2S under detecting condition, if HO2S’s signal is lean during power enrichment condi-
tions, PCM sets P2195. MIL(Malfunction Indication Lamp) turns on when the malfunction lasts till consecutive 2 driving
cycle.
DTC DETECTING CONDITION
E1EC9544
Item
Detecting Condition
Possible cause
DTC Strategy
• Monitor HO2S’s signal
Enable Conditions
• Battery voltage ≥ 10V
• Engine running ≥ 60sec.
• Power Enrichment conditions
• Engine warm-up state
• Not in Transient Conditions
Threshold value
• HO2S’s signal < 0.35V and Air Fuel Ratio ≤ 13.5
DiagnosisTime
• Continuous
(More than 8 sec. failure for every 9 sec. Test)
MIL On Condition
• 2 Driving Cycles
• Poor Connection
• Faulty HO2S
• Clogging of fuel filter in
fuel pump
• Faulty PCM
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст