Cylinder 11 Injector Circuit High
The P0292 code indicates that the powertrain control module (PCM) has detected a high voltage or resistance in the electrical circuit for the fuel injector on cylinder 11. This can be caused by a faulty injector, damaged wiring, or a poor connection. The injector circuit is monitored for proper voltage and current; when the signal is out of range, the code is set.
1. Most Common Causes
- Open internal coil in cylinder 11 injector
- Open or short-to-battery (B+) in injector control circuit wiring
- Damaged, loose, or corroded terminals at injector connector
- Failed injector driver (transistor) inside the PCM
- Blown injector power supply fuse (if PCM detects missing feedback)
2. Symptoms You Will Notice
- Engine misfire on cylinder 11
- Rough idle or hesitation
- Check Engine Light illuminated
- Decreased fuel economy
3. Step-by-Step Diagnosis
Step 1: Scan for codes and note freeze frame data.
Step 2: Visually inspect injector connector and wiring for damage or corrosion.
Step 3: Measure resistance of injector 11; compare to spec (typically 12-16 ohms).
Step 4: Check for voltage at injector connector with key on; should be battery voltage.
Step 5: Perform a injector balance test or swap injector to see if code follows.
4. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended as it can cause engine misfire and potential catalytic converter damage. Have it diagnosed promptly.
How much does it cost to fix?▼
Repair costs vary: injector replacement $150-$400, wiring repair $100-$300, PCM replacement $500-$1000.
5. Commonly Affected Makes
This is a generic OBD2 code, potentially applicable to any manufacturer using this diagnostic standard.