Fuel Pressure Release: Service and Repair

Release Residual Pressure in Fuel Line

CAUTION:
There may be some residual high pressure even after "Release Residual Pressure in Fuel Line" work, so must cover the high pressure line connection part with a shop towel or a cloth to prevent residual fuel from spilling out before removing any high pressure fuel part.
Then release pressure by carefully removing connection part.
If not, it may result in the injury by high temperature and pressure fuel.

1. Turn the ignition switch OFF and disconnect the battery (-) cable.
2. Remove the fuel pump relay (A).





CAUTION:
When removing the fuel pump relay, a Diagnostic Trouble Code (DTC) may occur. Delete the code with the GDS after completion of "Release Residual Pressure in Fuel Line" work.

3. Connect the battery (-) cable.
4. Start the engine and let idle, and then turn the ignition switch OFF after the engine has stopped on its own.
5. Disconnect the battery (-) cable, and then install the fuel pump relay (A).
6. Connect the battery (-) cable.
7. Delete the Diagnostic Trouble Code (DTC) related the fuel pump relay with the GDS.