P0306
Cylinder 6 Misfire Detected
System: Ignition
Severity: medium
What does P0306 mean?
The DTC P0306 (Cylinder 6 Misfire Detected) is a fault code stored by the ECU when it detects a misfire cyl 6 condition in the ignition subsystem. It is commonly seen on European and Asian vehicles using Bosch, Continental, Siemens or Denso ECUs.
Common causes of P0306
- Coil/plug cyl 6
- Injector clog
- Rear-cylinder heat soak (V engines)
- Low compression
How to fix P0306
V6/V8s: rear bank coils run hotter. Swap-test and check compression.
Tuning approach with DaVinci Deluxe
For P0306, DaVinci Deluxe offers the following ECU map adjustments and software solutions:
- Per-cyl fuel trim
- Per-cyl spark
Need to fix P0306 on your ECU?
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