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DTC P0093 FUEL SYSTEM
EC-959
[YD (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
DTC P0093 FUEL SYSTEM PFP:17520
On Board Diagnosis Logic EBS01185
DTC Confirmation Procedure EBS01186
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and keep engine speed more than 4,000 rpm for at
least 5 seconds.
4. If 1st trip DTC is detected, go to EC-959, "
Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
Diagnostic Procedure EBS01187
1. CHECK FUEL TRANSPORT PUMP OPERATION
Perform Diagnostic Procedure for fuel transport pump. Refer to EC-1194
.
OK or NG
OK >> GO TO 2.
NG >> Follow the instruction of Diagnostic Procedure for fuel transport pump.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0093 Fuel system leak
ECM detects a fuel system leak.
(The relation between the output voltage to the
fuel pump and input voltage from the fuel rail
pressure sensor is out of the normal range.)
● Fuel pump
● Fuel rail
● Fuel pipe
● Fuel rail pressure relief valve
● Air mixed with fuel
● Lack of fuel
● Fuel transport pump operation
SEF817Y
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