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1997 BMW 328IS E36
2.8L I6 M52•RWD•AUTOMATIC•gas
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Repairs0Labor498Torque2179Fluid8DTC832Battery1Maintenance0Recalls0
29D2high severityPowertrain

Misfire Cylinder 7

on 1997 BMW 328is E36 2.8L I6 M52 · RWD

What this code means

The engine control module detected a misfire on cylinder 7, meaning combustion is not completing correctly. This is the BMW equivalent of OBD code P0307.

Symptoms

  • Rough idle
  • Engine hesitation
  • Check engine light flashing

Common causes

  • Faulty ignition coil
  • Worn spark plug
  • Fuel injector fault
  • Low compression or vacuum leak

Diagnostic steps

  1. Read freeze frame and confirm cylinder 7 misfire
  2. Swap coil and plug to another cylinder
  3. Test injector operation on cylinder 7
  4. Perform compression test on cylinder 7
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