P0292 — Cylinder 11 Injector Circuit High
P0292 is the standardized powertrain DTC for “Cylinder 11 Injector Circuit High.” The code identifies the monitored condition; it does not by itself prove which part failed.
What P0292 means
P0292 is the standardized powertrain DTC for “Cylinder 11 Injector Circuit High.” The code identifies the monitored condition; it does not by itself prove which part failed.
How to interpret the code wording
“Circuit High” means the module saw voltage or a signal above its calibrated range. Depending on circuit design, test for a short to voltage, an open/poor ground, an open signal circuit, terminal problems, or a failed sensor/actuator. Use the OEM wiring diagram because “high” does not identify the failed part by itself.
Possible symptoms
- Cylinder misfire
- Rough idle
- Hard start
- Fuel odor or poor economy
- Check Engine Light
Causes to test
These are diagnostic possibilities, not a statistical parts-replacement ranking. Vehicle-specific service information takes priority.
- Injector electrical open/short or poor connector contact
- Injector mechanically clogged or leaking
- Driver/control-circuit fault
- Fuel-pressure problem
- Mechanical compression issue mistaken for injector imbalance
Step-by-step diagnostic workflow
- Identify the cylinder and save misfire/fuel-trim data.
- Inspect injector connector and harness; verify supply and control with the correct test method.
- Use injector balance, current-ramp, or contribution testing where specified.
- Confirm fuel pressure and mechanical compression if the cylinder remains weak.
- Perform circuit or mechanical tests specified by service information; repair the confirmed root cause.
- Clear codes only after repair, then complete an appropriate drive cycle and verify the code and symptoms do not return.
Scan data worth checking
- Misfire counters
- Injector command/pulse width
- Fuel trims
- Fuel/rail pressure
- Cylinder contribution data where supported
Severity and drivability
Moderate to high if the engine is misfiring. A leaking injector can also damage the catalyst or dilute engine oil.
Stop driving and investigate immediately if there is a flashing MIL, oil-pressure warning, overheating, fuel leakage, severe misfire, major loss of power, abnormal mechanical noise, or a transmission that is slipping badly.
Common diagnostic mistakes
- Using a test light that can overload a PCM injector driver
- Replacing an injector without checking compression
- Ignoring a leaking injector because electrical resistance tests normally
Related generic codes
Source and accuracy notes
Generic DTC structure and standardized definitions are governed by SAE J2012/J2012DA. Actual enable criteria, thresholds, circuit pinouts, test values, software conditions, and repair procedures vary by vehicle. Use current OEM service information for the exact year/engine/calibration and check applicable manufacturer technical service bulletins. See the site methodology and primary-reference policy.