Some 2022-2023 Corvette, Silverado, Tahoe, Suburban, Sierra, Yukon and Escalade models equipped with the 5.3L V8 engine (RPO L84) or 6.2L V8 engine (RPO L87, LT2) may have an illuminated Check Engine MIL along with a number of fuel injector performance DTCs set, including: P30D4, P2B95, P02EE, P02EF, P02F0, P02F1, P02F2, P02F3, P02F4, P02F5, P2B08, P2B09, P2B0A, P2B0B, P2B0C, P2B0D, P2B0E or P2B0F.
These conditions may be caused by a faulty fuel injector.
Follow the diagnostic chart for the applicable DTC in the appropriate Service Information too address the issue. If it’s determined that a faulty injector is causing the issue, replace the injector for the appropriate cylinder and reevaluate vehicle operation.
TIP: When installing new injectors, be sure that they are clean and free of debris prior to installation. Do not lubricate the injector seals. Always use the new fuel injector collars supplied with the new injector.
Do not replace the Engine Control Module (ECM) if these DTCs are set. GM Engineering is reviewing this condition and additional information will be released when available.