Loading ...
Loading ...
Loading ...
EC-1338
[YD (WITH EURO-OBD)]
DTC P1273 FUEL PUMP
DTC P1273 FUEL PUMP PFP:16700
Description BBS0024B
To control the amount of the fuel inhalation of the fuel pump, a plunger is built into the fuel pump. When the
amount of the fuel inhalation of fuel pump increases, the fuel raises the fuel exhalation pressure. As a result,
the fuel injection pressure is raised. When the load of the engine increases, the ECM sends a signal to the fuel
pump to raise the injection pressure.
CONSULT-II Reference Value in Data Monitor Mode BBS0024C
Specification data are reference values.
On Board Diagnosis Logic BBS0024D
NOTE:
● If DTC P1273 is displayed with DTC P0652 or P0653, first perform trouble diagnosis for DTC P0652
or P0653. Refer to EC-1312, "
DTC P0652, P0653 SENSOR POWER SUPPLY" .
DTC Confirmation Procedure BBS0024E
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. Start engine and warm it up to normal operating temperature.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Keep engine speed more than 2,000 rpm for at least 10 sec-
onds.
4. If 1st trip DTC is detected, go to EC-1340, "
Diagnostic Proce-
dure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
MONITOR ITEM CONDITION SPECIFICATION
PUMP CURRENT
● Engine: After warming up
● Air conditioner switch: OFF
● Shift lever: Neutral position
● No load
Idle 1,700 - 1,900 mA
2,000 rpm 1,600 - 1,800 mA
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1273
1273
Fuel pump insufficient flow
ECM detects the abnormal pulse of fuel pres-
sure.
● Harness or connectors
(The fuel pump circuit is open or
shorted.)
● Fuel pump
● Injector adjustment value
● Air mixed with fuel
● Lack of fuel
● Fuel rail pressure sensor
● Fuel transport pump operation
SEF817Y
Loading ...
Loading ...
Loading ...