Low Engine Power

1. Air leak at connection between compressor housing and inlet tube or between inlet tube and intake manifold.
2. Exhaust leak at connection between turbine housing and exhaust manifold, connecting tube or exhaust outlet.
3. Bypass valve stuck open.
4. Bearing or journal worn or seized.
5. Broken shaft.
6. Sludge on back of turbine wheel.
7. Damaged turbine wheel.