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DTC codes / P02xx · Fuel and air metering (injector circuits) / P0292

P0292Cylinder 11 Injector Circuit High

P0292 is a generic OBD-II code indicating that the powertrain control module (PCM) has detected an abnormally high current or voltage on the control circuit for cylinder 11's fuel injector. The PCM monitors the injector driver circuit and sets this code when the electrical load exceeds the expected range, which usually points to a short to power or a faulty injector.

SystemPowertrain
Code typeGeneric (all makes)
SeverityMedium
Fix difficultyIntermediate
AreaFuel and air metering (injector circuits)

Symptoms you may notice

  • Illuminated check engine light, often with no other noticeable symptoms
  • Rough idle or misfire, especially noticeable at low speeds
  • Engine hesitation or stumble during acceleration
  • Decreased fuel economy due to improper fuel delivery
  • Possible rich fuel smell from the exhaust if the injector is stuck open
  • In rare cases, the engine may enter limp mode to protect the catalytic converter

Common causes, most likely first

  1. Faulty fuel injector with an internal short or low resistance
  2. Short to power in the injector control wiring harness
  3. Corroded or damaged electrical connector at the injector
  4. PCM driver circuit failure (less common)
  5. Aftermarket or incorrect injector installed with wrong resistance
  6. Moisture intrusion in the injector connector causing a short

How to diagnose and fix it

  1. Inspect the injector connector and wiring for visible damage, corrosion, or loose pins
  2. Measure the injector resistance with a multimeter and compare to specification
  3. Check for a short to power on the control circuit using a wiring diagram and multimeter
  4. Swap the suspect injector with a known-good one from another cylinder to see if the code moves
  5. Test the PCM driver circuit with a noid light or oscilloscope to confirm proper signal
  6. Replace the faulty injector if resistance is out of range or the coil is shorted
  7. Repair or replace damaged wiring or connectors as needed, then clear codes and verify

Why cylinder 11 injector codes mislead

  • Cylinder numbering varies between manufacturers, so cylinder 11 may not exist on many engines; always confirm the firing order and cylinder layout before diagnosing.
  • A high circuit code often results from a short to power rather than an open circuit, so checking for voltage on the control wire with the key on is a critical step.
  • Injector resistance can change with temperature, so a cold ohm test may pass while the injector still fails when hot; testing hot is sometimes necessary.
  • Aftermarket injectors with incorrect resistance are a common cause of repeat P0292 codes, even when the original injector was replaced.
  • The PCM may set this code intermittently due to a loose connector that only loses contact during engine vibration, so wiggle tests are valuable.

Can I keep driving with P0292?

Driving with P0292 is generally acceptable for short distances, but avoid heavy acceleration or towing because a misfire can overheat the catalytic converter. If the engine runs rough or flashes the check engine light, stop driving and seek service immediately.

Tools that help

Tools we recommend are in the Auto Veteran shop on Amazon. As an Amazon Associate we earn from qualifying purchases.

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.

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