Cylinder 11 Injector Circuit High
P0292 indicates that the fuel injector circuit for cylinder 11 is detecting a higher-than-normal voltage or resistance condition. This prevents proper fuel delivery to that cylinder, causing misfires and rough running. The code typically affects fuel economy and engine performance until repaired.
What You Might Notice
- Malfunction indicator light (check engine light) illuminated
- Rough idle and stumbling at low RPM
- Poor fuel economy and increased fuel consumption
- Lack of power during acceleration
- Engine hesitation or hesitating on throttle input
Most Common Causes
- 1
Faulty fuel injector
The injector for cylinder 11 may have high internal resistance or an electrical failure causing the circuit voltage to be too high. This is the most common cause of P0292.
- 2
Damaged injector wiring harness
Frayed, corroded, or pinched wiring to cylinder 11's injector can cause high resistance in the circuit. Check for damaged insulation or loose connections at the injector connector.
- 3
Faulty fuel injector driver in PCM
The engine control module's injector driver circuit for cylinder 11 may be malfunctioning, causing abnormal voltage output to that injector.
- 4
Poor electrical connection at injector
Corrosion, loose connectors, or a bad ground connection at the injector terminal can increase resistance and trigger the high-voltage condition.
How to Diagnose It
- 1
Check Faulty fuel injector — The injector for cylinder 11 may have high internal resistance or an electrical failure causing the circuit voltage to be too high. This is the most common cause of P0292.
- 2
Check Damaged injector wiring harness — Frayed, corroded, or pinched wiring to cylinder 11's injector can cause high resistance in the circuit. Check for damaged insulation or loose connections at the injector connector.
- 3
Check Faulty fuel injector driver in PCM — The engine control module's injector driver circuit for cylinder 11 may be malfunctioning, causing abnormal voltage output to that injector.
- 4
Check Poor electrical connection at injector — Corrosion, loose connectors, or a bad ground connection at the injector terminal can increase resistance and trigger the high-voltage condition.
How to Fix It
- 1
Test and replace fuel injector
Use a multimeter to measure the injector resistance (typically 11-15 ohms). If resistance is too high or infinite, or if the injector fails a balance test, replace the fuel injector for cylinder 11.
- 2
Inspect and repair injector wiring harness
Check the fuel injector wiring harness for cylinder 11 for damage, corrosion, or loose connections. Repair or replace the harness as needed and ensure connections are secure.
- 3
Clean or replace injector connector
Remove the connector from cylinder 11's injector and inspect for corrosion or bent pins. Clean with electrical contact cleaner or replace the connector if damaged.
- 4
Check PCM and perform system test
If injector and wiring are good, the PCM injector driver may be faulty. Have the vehicle scanned with advanced diagnostics and consult technical service bulletins for your specific vehicle model for PCM reprogramming or replacement procedures.
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