Engine Has Low Power
- Air in fuel system.
- Poor fuel quality.
- Fuel tank empty or fuel tank vent blocked.
- Fuel control lever not obtaining full throttle.
- Clogged or defective fuel filter.
- Restricted, blocked or leaking fuel injection or supply lines.
- Incorrect timing or defective fuel injection pump.
- Restricted or damaged fuel injector.
- Restricted or damaged air filter.
- Low manifold pressure.
- Injection sequence does not correspond with firing order.
- Low or uneven engine compression.