← Back to OBD2 List
Genel OBD2
🟡 Medium
Genel OBD2
P0261
Cylinder 1 Injector Circuit Low
The P0261 diagnostic trouble code (DTC) indicates a Cylinder 1 Injector Circuit Low. This fault impacts the fuel delivery system, where precise pressure and volume are critical for combustion. Signal voltage is below the minimum threshold, often caused by a short-to-ground in the wiring harness or a failing sensor internal circuit.
Brand
Genel OBD2
Fault Code
P0261
Severity
🟡 Medium
Models
Tüm marka ve modeller
🛠️ Diagnostic Overview
Difficulty Level
🛠️🛠️
Medium (Moderate)
Estimated Time
⏱️ 1-2 Hours
🧰 Required Tools
- ✓ Digital Multimeter
⚠️ Possible Causes
- Short to ground in injector circuit
- Faulty injector
- ECM fault
🔧 Recommended Fixes
- Inspect wiring for shorts
- Test injector
- Check ECM output
🚗 Commonly Affected Vehicles
🏭 Genel OBD2 – Other Common Fault Codes