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FUEL LINE PRESSURE INSPECTION [SKYACTIV-X 2.0]

FUEL LINE PRESSURE INSPECTION [SKYACTIV-X 2.0]


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Special service tool (SST)

49 N013 1A0D
 
Fuel pressure gauge set

Warning
•  Fuel line spills and leakage from the pressurized fuel system are dangerous. Fuel can ignite and cause serious injury or death, and damage to equipment. To prevent this, perform the following inspections with the engine stopped.
•  Highly pressurized fuel may spray out if the fuel line is cut. Due to the following dangers occurring with a fuel spray, always complete the [Fuel Line Safety Procedure] to prevent the fuel from spraying.
―  Fuel may cause irritation if it comes in contact with skin and eyes.
―  If fuel ignites and causes a fire, it may lead to serious injury or death, and damage to property and facilities.
•  A person charged with static electricity could cause a fire or explosion, resulting in death or serious injury. Before servicing the fuel system, make sure to discharge static electricity by touching a vehicle.
Caution
•  If there is foreign matter on the connecting area of the quick release connector, it might damage the connector or fuel pipe. To prevent this, disconnect the quick release connector and clean the connecting area before connecting it again.

1.  Perform the [Fuel Line Safety Procedure] referring to the [BEFORE REPAIR PROCEDURE]. (See BEFORE SERVICE PRECAUTION [SKYACTIV-X 2.0].)

2.  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(E)].)

3.  Disconnect the quick release connector shown in the figure. (See QUICK RELEASE CONNECTOR (FUEL SYSTEM) REMOVAL/INSTALLATION [SKYACTIV-X 2.0].)

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4.  Install the SST as shown in the figure and turn the lever to a position where it is parallel to the hose.

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5.  Insert the SST quick release connector into the fuel pipe until a click is heard.

6.  Pull the quick release connector by hand and verify that it is installed securely.

7.  Operate the fuel pump for 10 s using the following procedure.

(1)  Remove the fuel pump relay.
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Caution
•  Shorting the wrong terminal in the relay and fuse block may cause malfunctions. Make sure to short only the specified terminal.
(2)  Short fuel pump relay terminal C and terminal D in the relay and fuse block using a jumper wire.
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(3)  Connect the negative battery terminal and operate the fuel pump. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(E)].)

8.  Measure the fuel pressure.

•  If not within the standard, inspect the following.
Fuel pressure is lower than standard
―  Fuel pump unit
―  Fuel line leakage
Fuel pressure is higher than standard
―  Fuel line clogging
Fuel pressure value
545—695 kPa

9.  Disconnect the negative battery terminal and stop the fuel pump. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(E)].)

10.  Wait 5 min and measure the fuel hold pressure.

•  If not within the standard, inspect the following.
―  Fuel line clogging or leakage
Fuel hold pressure
175 kPa or more

11.  Perform the [Fuel Line Safety Procedure] referring to the [BEFORE REPAIR PROCEDURE]. (See BEFORE SERVICE PRECAUTION [SKYACTIV-X 2.0].)

12.  Disconnect the SST.

13.  Connect the quick release connector. (See QUICK RELEASE CONNECTOR (FUEL SYSTEM) REMOVAL/INSTALLATION [SKYACTIV-X 2.0].)

14.  Perform the fuel leakage inspection referring to [AFTER SERVICE PRECAUTION]. (See AFTER SERVICE PRECAUTION [SKYACTIV-X 2.0].)