P306d Peugeot

| Cause | Frequency | Typical engine | |--------|-----------|----------------| | Clogged/dirty fuel injector (cylinder 3) | High | 1.6 THP (EP6), 1.2 PureTech | | Carbon buildup on intake valves (direct injection) | Very high | 1.6 THP (EP6CDT/M) | | Weak ignition coil (cylinder 3) | Medium | 1.6 THP, 1.6 VTi | | Faulty spark plug | Medium | Any | | Low compression (valve or ring issue) | Low but serious | High-mileage THP |

In the world of Peugeot diagnostics (often read via specialized tools like ), the P306D code typically indicates a coherence problem . The full description usually reads: p306d peugeot