VOLVOUU Engine D11L (Tier 4) Fault Code: SID 4 FMI 7 Injector #4
CONTROL UNIT:
Engine ECU
DETECTION CONDITIONS:
The engine control unit (E-ECU) registers cylinder balancing data out of limit.
SYMPTOM:
1. Uneven engine running at idle speed.
2. Injector in question is shut off.
POSSIBLE CAUSES:
1. Defect injector.
1. Bad compression.
2. Leakage between injector sleeve and cylinder head.
3. Leakage between injector sleeve and injector.
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