P1294 – Fuel Injector Calibration Fault
Want to confirm the real cause of this fault code?
A high‑quality OBD2 scanner gives you live data, fuel trims, sensor readings and freeze‑frame information — exactly what you need to verify the root cause of this code with confidence.
Symptoms
- Rough idle
- Misfires
- Loss of power
- Poor fuel economy
- Check engine light
Causes
- Incorrect injector coding
- Injector replacement
- ECU replacement
- Software mismatch
- Injector wear
Diagnosis
- Check injector codes
- Compare to ECU data
- Scan for related codes
- Check fuel trims
- Review service history
Repair
- Recode injectors
- Update ECU software
- Replace worn injectors
- Replace control module if needed
- Clear codes and road test