SPN 102 FMI 18 typically indicates low intake manifold pressure causing power loss and turbo performance issues.
Common Symptoms
- Low power
- Turbo problems
- Black smoke
- Check engine light
- Poor acceleration
Common Causes
- Boost leak
- Bad sensor
- Turbo issue
- Dirty air filter
- Wiring problems
How to Fix
- Check boost leaks
- Monitor live boost data
- Inspect turbo
- Replace faulty sensor