Wiring fault in the cylinder 11 injector control circuit (short to voltage, open circuit or chafed loom); Corroded, loose or damaged connector at the injector or at the control unit; Faulty cylinder 11 injector with internal open or short circuit; Poor power supply or earth affecting the injector circuit; Injector driver fault inside the engine control unit; Incorrect cylinder identification or an outdated control unit calibration, which depends on the model and engine.

P0292

Cylinder 11 Injector A Circuit High.

Generic
Powertrain
Generic code
Medium severity

How this code is built

P: SystemPowertrain
0: Defined bySAE, the same on every car
2: AreaFuel and air metering (injector circuit)
92: FaultThe specific fault in that area

What it means

P0292 is the generic code for a high voltage condition in the control circuit of the cylinder 11 injector. The engine control unit monitors the injector driver circuit and has seen a voltage or signal level higher than expected, which can point to a short to voltage, an open circuit, or a fault in the driver itself. This code only applies to engines with 11 or more cylinders, so check the cylinder numbering for the specific engine, as the layout varies by model.

Symptoms

Engine misfire or rough running, possibly on one cylinder only
Malfunction indicator lamp on
Noticeable loss of power or poor acceleration
Rough idle or vibration
Increased fuel consumption
Engine may run in a reduced power mode

Possible causes

Wiring fault in the cylinder 11 injector control circuit (short to voltage, open circuit or chafed loom)likely
Corroded, loose or damaged connector at the injector or at the control unitlikely
Faulty cylinder 11 injector with internal open or short circuitpossible
Poor power supply or earth affecting the injector circuitpossible
Injector driver fault inside the engine control unitrare
Incorrect cylinder identification or an outdated control unit calibration, which depends on the model and enginerare

How to diagnose

Read all stored and pending codes and the freeze frame data, noting engine load, temperature and speed when the fault set, and check for other injector codes
Check the cylinder numbering and injector layout for the specific engine so you are testing the correct injector
Visually inspect the injector connector, wiring loom and routing for chafing, heat damage, corrosion, or fluid ingress
Check for a misfire on the affected cylinder and compare injector operation with live data where supported
Measure the injector coil resistance and compare it with the manufacturer specification for the engine
Check the injector control wire for continuity, and for shorts to voltage or earth with the control unit disconnected, following the wiring diagram
Check the injector supply voltage and the relevant earths under load
If wiring and the injector test fine, check for applicable technical bulletins or calibration updates before considering the control unit

How to fix

Repair or replace damaged wiring in the injector circuit, using proper soldered and sealed joints
Clean or replace corroded or damaged connectors and terminals
Replace the cylinder 11 injector if its resistance or operation is out of specification
Restore any faulty power supply or earth connection
Repair or replace the engine control unit only after the wiring and injector are confirmed good, and update the calibration if a known fault applies

Can I keep driving?

Medium severity

The car can usually be driven a short distance to a garage, but an injector that is not firing or is stuck can cause misfires and unburnt fuel reaching the catalytic converter. Avoid heavy loads and have it diagnosed soon, and stop driving if the engine runs very roughly or the warning lamp flashes.

Guide written by AI from the code's definition. Confirm with a diagnosis before replacing parts.