P0308
Cylinder 8 Misfire Detected
System: Ignition
Severity: medium
What does P0308 mean?
The DTC P0308 (Cylinder 8 Misfire Detected) is a fault code stored by the ECU when it detects a misfire cyl 8 condition in the ignition subsystem. It is commonly seen on European and Asian vehicles using Bosch, Continental, Siemens or Denso ECUs.
Common causes of P0308
- Coil/plug cyl 8
- Injector
- Compression loss
- Wiring fault rear bank
How to fix P0308
Swap diagnosis. On big-block V8s also check spark plug gap for boost setups.
Tuning approach with DaVinci Deluxe Cloud Edition
For P0308, DaVinci Deluxe Cloud Edition offers the following ECU map adjustments and software solutions:
- Per-cyl trim
- Per-cyl ignition timing
Need to fix P0308 on your ECU?
DaVinci Deluxe Cloud Edition is professional ECU tuning software trusted by 800+ workshops. From €49.99 (24-Hour Pass), €100.99/month or €1009/year — or test it first with the Real Software Test: €9.99 for 7 days, then €100.99/month unless you cancel in one click.
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