Fuel and air

P0292 — Cylinder 11 Injector Circuit High

Severity: medium Drive with care, to a shop

What P0292 means

The engine control module switches the cylinder 11 injector through an output driver and monitors the circuit voltage. P0292 is set when that circuit stays higher than expected. Typical causes are a short to voltage, a bad injector, or a failed driver inside the module. The code applies to engines with 11 or more cylinders; on other engines it may point to a data or description mismatch.

Symptoms

  • Check Engine Light on
  • Rough or uneven idle
  • Misfire on cylinder 11
  • Loss of power and sluggish acceleration
  • Worse fuel economy
  • Hesitation under load

Possible causes

  1. Faulty injector on cylinder 11 (internal short or open winding)
  2. Damaged wiring, corrosion or a poor connection at the injector connector
  3. Injector signal wire shorted to battery voltage
  4. Failed injector driver inside the PCM
  5. Power or ground supply problem at the control module

How to diagnose

  1. Read all codes and freeze frame data, and look for other injector codes
  2. Inspect the injector 11 connector and harness for chafing, corrosion or heat damage
  3. Check misfire counts and cylinder balance with a scan tool
  4. Measure injector winding resistance and compare with the specification
  5. Check for power and a switching pulse at the connector with a meter or scope
  6. Test the wire between injector and PCM for opens and shorts to voltage
  7. Swap the injector with a neighboring cylinder and see whether the fault follows it
  8. Verify PCM power and grounds before suspecting the module

Common fixes

  • Replace the cylinder 11 injector
  • Repair or replace the damaged harness or connector
  • Clear the short to voltage in the circuit
  • Repair or replace the PCM if the injector driver is confirmed faulty
  • Clear codes and road test to confirm the fault does not return

Questions and answers

What does P0292 mean?

The PCM detected a high voltage in the cylinder 11 injector control circuit. Wiring, the injector itself or the PCM driver are the usual culprits.

Can I drive with P0292?

Only briefly and carefully, to reach a repair shop. The engine may misfire and lose power, and prolonged bad fueling can damage the catalytic converter.

Why do I get this code on an engine with fewer than 11 cylinders?

It may be a manufacturer numbering quirk or a mismatched code description. Check data for your exact model and read other injector codes.

This is general information about the code. The meaning can differ between makes and models: a scan tool and the repair manual for your car will show the exact cause.