What Does P0292 Mean?
The ECM has detected that the voltage or current on the cylinder 11 fuel injector circuit is higher than expected. This indicates an electrical fault such as a short to battery voltage in the injector wiring, a shorted injector coil, or an ECM driver issue. On engines with 11+ cylinders (typically large diesel or high-performance applications), the driver may notice rough running, excessive smoke from that cylinder, or potential over-fueling.
Common Causes
35%
Short to battery voltage in the cylinder 11 injector wiring harness due to chafing or insulation damage
30%
Internally shorted fuel injector coil on cylinder 11 causing excessive current draw
15%
Corroded or damaged injector connector allowing moisture ingress and short circuit
12%
ECM injector driver circuit malfunction causing incorrect voltage output
8%
Aftermarket wiring modification or incorrect injector installed creating impedance mismatch
Diagnostic Steps
1
Measure cylinder 11 injector coil resistance with the connector disconnected; compare to manufacturer specification (typically 0.5-1.2 ohms for piezo injectors or 12-16 ohms for solenoid types).
2
With the injector disconnected, check for short to battery voltage on both injector harness wires using a DVOM; there should be no voltage present with the key on engine off.
3
Inspect the entire cylinder 11 injector wire run from the ECM to the injector for chafing, heat damage, or pinched wiring, paying special attention near exhaust manifolds and moving components.
4
Swap the cylinder 11 injector with an adjacent known-good injector; if the high circuit code follows the injector, replace it. If it stays at cylinder 11, the fault is in the wiring.
5
If wiring and injector test good, monitor ECM injector driver output with an oscilloscope to verify proper waveform shape and peak current limiting.
Estimated Repair Cost
$150 - $1,200
Parts + labor, varies by vehicle and location
The ECM has detected that the voltage or current on the cylinder 11 fuel injector circuit is higher than expected. This indicates an electrical fault such as a short to battery voltage in the injector wiring, a shorted injector coil, or an ECM driver issue. On engines with 11+ cylinders (typically l...
The most common cause of P0292 (Cylinder 11 Injector Circuit High) is: Short to battery voltage in the cylinder 11 injector wiring harness due to chafing or insulation damage
Typical repair costs for P0292 range from $150 to $1,200, depending on the vehicle, location, and whether you do it yourself or go to a shop.
A high circuit condition can cause the injector to stay open or deliver too much fuel, washing down the cylinder wall and diluting oil. This risks engine damage if driven. Minimize driving until repaired.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0292 to identify the root cause.
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Quick Info
Category
Powertrain
System
Fuel Injection System
Difficulty
Type
Generic (SAE)
Recommended Tools
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