P0292
Cylinder 11 Injector Circuit High
When a vehicle powertrain module registers the fault code P0292, it points directly to an internal system malfunction identified as "Cylinder 11 Injector Circuit High". Operating your engine under this condition may degrade long-term fuel maps.
Driver's Summary
A P0292 fault code points directly to a problem with cylinder 11 injector circuit high that the ECM has confirmed over multiple drive cycles. You may notice flashing check engine light, poor fuel economy, all of which are direct consequences of this malfunction. Stop driving as soon as it is safe to do so. This fault can lead to expensive secondary damage if left unaddressed.
Symptoms
Flashing check engine light, poor fuel economy
Common Causes
- Short to power in Cyl 11 injector circuit
- Failed fuel injector
- Damaged wiring near exhaust
- Internal PCM short
How to Fix
- 1 Locate and fix shorted wire
- 2 Replace Cyl 11 injector
- 3 Reroute wiring away from heat
- 4 Test PCM voltage
Technical Explanation
To set P0292, the PCM samples the affected circuit multiple times per second, comparing live readings against manufacturer-programmed operating windows. Misfire rate is counted per cylinder over rolling windows and compared against two thresholds: a catalyst-damaging rate (triggers flashing MIL) and an emissions-exceeding rate (triggers solid MIL). The PCM logs which cylinder is misfiring based on crankshaft position at the time of each detected event. Once confirmed, the code is stored as a permanent DTC and the MIL is activated. The freeze frame snapshot — recording RPM, load, coolant temperature, and fuel trim at fault detection — is also saved and is critical for accurate diagnosis.
Is It Safe to Drive?
An active P0292 code under high-severity conditions means the affected system is operating outside safe parameters. Continued driving — especially under load or at highway speeds — significantly increases the risk of secondary damage to components like failed fuel injector.
Mechanic's Pro Tip
When diagnosing P0292, always test fuel volume delivery in addition to static pressure — a pump that holds pressure at idle but delivers insufficient volume under load will cause the fault only during acceleration or high demand, making it difficult to replicate in the driveway. Use a fuel pressure gauge with a volume outlet port: a healthy pump should deliver at least 1 liter per minute. Replace the fuel filter first; it's the cheapest test and solves the fault in a significant percentage of cases.
Injector: 200 - 500