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DTC P0093 FUEL SYSTEM
EC-1083
[YD (WITH EURO-OBD)]
C
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A
EC
2. PERFORM FUEL PUMP LEARNING VALUE CLEARING
NOTE:
If the DTC is detected because of air mixed with fuel (i.e.: caused by lack of fuel), it may become normal by
performing following procedure.
With CONSULT-II
1. Turn ignition switch ON.
2. Perform Fuel Pump Learning value clearing. Refer to EC-994, "
Fuel Pump Learning Value Clearing" .
3. Start engine and let it idle for at least 60 seconds.
4. Select “SELF-DIAG RESULT” mode with CONSULT-II.
5. Touch “ERASE”.
6. Perform EC-1082, "
DTC Confirmation Procedure" , again.
7. Is 1st trip DTC detected again?
With GST
1. Turn ignition switch ON.
2. Perform Fuel Pump Learning value clearing. Refer to EC-994, "
Fuel Pump Learning Value Clearing" .
3. Start engine and let it idle for at least 60 seconds.
4. Select Service $04 with GST.
5. Perform EC-1082, "
DTC Confirmation Procedure" , again.
6. Is 1st trip DTC detected again?
Yes or No
Yes >> GO TO 3.
No >> INSPECTION END
3. CHECK FUEL LINE FOR LEAK
1. Start engine.
2. Visually check the following for fuel leak.
– Fuel tube from fuel pump to fuel rail
– Fuel rail
– Fuel tube from fuel rail to fuel injector
3. Also check for improper connection or pinches.
OK or NG
OK >> GO TO 4.
NG >> Repair malfunctioning part.
4. CHECK FUEL RAIL PRESSURE RELIEF VALVE
Refer to EC-1084, "
Component Inspection" .
OK or NG
OK >> GO TO 5.
NG >> Replace fuel rail.
5. CHECK INTERMITTENT INCIDENT
Refer to EC-1058, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
OK or NG
OK >> GO TO 6.
NG >> Repair or replace.
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