Cleaning Procedure

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.

Courtesy of GENERAL MOTORS COMPANY

Fuel Injector Wiring Harness (1) - Disconnect
Courtesy of GENERAL MOTORS COMPANY

Taking care not to touch or apply force to the injector tip or electrical connector, remove the fuel injector (1) by pressing down on the retainer lever to release the tab (2) and simultaneously rotating the injector 45 degrees and pulling straight out from the fuel rail.
Remove and DISCARD the fuel injector retainer (3) from the fuel injector.
Courtesy of GENERAL MOTORS COMPANY

Using pliers, remove and DISCARD the fuel injector bushing (3) straight out from injector body.
Remove and DISCARD the fuel injector O-ring (1) and plastic spacers (2).
Fuel Injector Seal (4) - Remove and DISCARD (x2).
Courtesy of GENERAL MOTORS COMPANY

NOTE:
Applying force to the plastic housing of the sensor will destroy the sensor. To tighten or loosen, only apply force to the attached hexagon.

Fuel Pressure Sensor (1) - Remove

NOTE:

Do not soak or submerge the fuel rail or injectors in solvent.

Clean the exterior of the fuel rail and injectors with solvent.