P06EC

Symptoms

• Check Engine light on
• Misfire in one or more cylinders
• Reduced engine power
• Dark smoke from the exhaust pipe
• Increased fuel consumption

Causes

• Fuel injector malfunction detected by FICM
• Internal failure of the FICM itself
• Problems with FICM high voltage supply
• Damage to the wiring harness between the FICM and the injectors
• Poor quality diesel fuel causing problems with injectors

How to Fix

1. Read all error codes, including FICM codes (manufacturer specific)
2. Check FICM operating voltage (48 V on Ford Power Stroke)
3. Inspect the wiring between the FICM and the injectors for damage.
4. Perform an injector test with a diagnostic scanner
5. Check fuel quality and diagnose injectors
6. If the FICM is internally faulty, consider repair or replacement.

Related codes

Error P06EC by Vehicle Brand