Engine Error
P0311
Cylinder 11 Misfire Detected
Severity
High
Symptoms
V12 engine running rough, raw fuel smell, flashing MIL
Common Causes
- Defective spark plug
- Failed ignition coil
- Burnt exhaust valve
- Wiring harness issue
How to Fix
- 1 Replace spark plug
- 2 Replace ignition coil
- 3 Perform leak-down test
- 4 Repair ignition wiring
Estimated Repair Cost
USD
$150
–
$2000
Ignition parts: 150 - 400; Valve job: 1,500+