P216D code meaning
Fuel Injector Group F Supply Voltage Circuit/Open
Powertrain system Generic code P21xx codes Check engine light
What P216D means
P216D is the general fault of injector group F, which GM gasoline 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.
P216D at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyHard
- Typical labor1 to 5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P216D
- Check engine lamp on, cylinder 6 misfire
- With the LT6 several bank 2 codes and fuel pressure faults at once
Common causes of P216D
- Most likelyInjector harness rubbed through on V6 engines
- PossibleWater in the bank 2 injector harness connector (Corvette LT6)
- Less likelyCylinder 6 injector shorted
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Fuel injectorInjector wiringEngine control module
What each part of P216D means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 1 | Area: fuel and air metering. |
| 6D | The exact fault in that area. |
What to do next
- Note P216D and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P216D
What does P216D mean?
P216D means "Fuel Injector Group F Supply Voltage Circuit/Open". P216D is the general fault of injector group F, which GM gasoline direct injection equates with cylinder 6; its 2024 tables (24OBDG07) call it injector F. It is a generic code, so it means the same on every make.
Is it safe to drive with P216D?
Drive gently and only to a workshop. With P216D the car can go into limp mode (reduced power) to protect itself.
Will P216D fail an emissions test?
Yes, it can. P216D is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P216D to fix?
Difficulty: hard. A typical repair takes 1 to 5 hours of work. This is a job for a workshop.
Will P216D clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.