P216AFuel Injector Group E 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
- Injector group E exists only on engines with at least five cylinders or five separately fed injector groups. GM petrol direct injection uses one group per cylinder, and its 2024 tables (24OBDG07) state it plainly: injector E is cylinder 5. The code covers the high-side feed of that injector. Despite the word open in the title, GM uses it for shorts: the 2008 3.6 LLT sets P216A for the high side of cylinder 5 shorted to ground or battery and leaves open circuits to P0205; the 2024 tables flag less than 0.5 ohm to ground with the driver off or to supply with it on, after two events above 9 V, one trip. GM bulletin PIP4924D lists P216A on 3.0 and 3.6 V6 engines whose injector harness rubbed through against the plenum, valve cover bolts or fuel line. Cylinder 5 misfires.
- What you may notice
- Check engine lamp on, often with a cylinder 5 misfire code
- Rough running and reduced power
- Likely causes
- LikelyInjector harness rubbed through at the intake plenum, valve cover bolts or fuel line
- PossibleCylinder 5 injector shorted internally
- RareHigh-side driver in the engine control module faulty
- 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.