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Home >> Hyundai >> 2020 >> Sonata SEL >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Fuel Delivery System - 1.6L (Except HEV)) >> Release Residual Pressure in Fuel Line

Release Residual Pressure in Fuel Line

WARNING: This page is about a different variant/trim than selected.
CAUTION:
  • There may be some residual pressure even after "Release Residual Pressure in Fuel Line" work, so cover the hose connection with a shop towel to prevent residual fuel from spilling out before disconnecting any fuel connection.
  1. Turn the ignition switch OFF and disconnect the battery (-) cable.
  2. Remove the fuel pump fuse (A).
    G14525183Courtesy of HYUNDAI MOTOR AMERICA
    CAUTION:
    • When removing the fuel pump relay, the Diagnostic Trouble Code (DTC) will be occurred. Therefore delete the code with the diagnostic tool after "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 diagnostic tool.
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