What does code P1346 mean on BMW vehicles?
The ECU detects a misfire on cylinder 3 during the engine starting phase.
OBD-II Code BMW
P1346 — BMW — Misfire During Start Cylinder 3
The ECU detects a misfire on cylinder 3 during the engine starting phase.
Common symptoms
- Irregular starting
- engine vibration
Possible causes
- Worn spark plug
- faulty coil
- injector malfunction
Initial recommendation
Check ignition components and injector operation on cylinder 3.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
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