P216DFuel Injector Group F Supply Voltage Circuit/Open
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P216D is the general fault of injector group F, which GM petrol direct injection equates with cylinder 6; its 2024 tables (24OBDG07) call it injector F. GM uses this code for shorts on the high side rather than opens: the 2008 3.6 LLT sets it for cylinder 6 shorted to ground or battery, while an open on either side goes to P0206; the 2024 tables count two events of less than 0.5 ohm to ground or supply, above 9 V, one trip. Two bulletins name it. PIP4924D covers 3.0 and 3.6 V6 models such as Enclave, Traverse, CTS and Camaro with chafed injector harnesses. Bulletin 24-NA-106 for the 2023 and 2024 Corvette with the LT6 lists P216D as cylinder 6 alongside P2149, P2155 and P217D, all bank 2, caused by water in a wrong 12-way connector.
- What you may notice
- Check engine lamp on, cylinder 6 misfire
- With the LT6 several bank 2 codes and fuel pressure faults at once
- Likely causes
- LikelyInjector harness rubbed through on V6 engines
- PossibleWater in the bank 2 injector harness connector (Corvette LT6)
- RareCylinder 6 injector shorted
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €100 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.