16684high severityPowertrain
Random/Multiple Cylinder Misfire Detected
on 2002 Audi A6 3.0L V6 · AWD
What this code means
The ECU detects misfires on multiple or random cylinders (equivalent to OBD P0300). This points to a shared cause affecting several cylinders at once.
Symptoms
- Engine shakes or runs rough
- Flashing check engine light
- Loss of power
Common causes
- Worn spark plugs or coils
- Vacuum or intake leak
- Low fuel pressure
- Faulty ignition components
Diagnostic steps
- Scan for cylinder-specific misfire counts
- Inspect spark plugs and ignition coils
- Check for vacuum leaks
- Test fuel pressure and delivery
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