The manifold fuel supply is part of the fuel system that helps distribute fuel from the high-pressure fuel pump to the injectors. It’s critical in maintaining consistent fuel pressure within the common rail system, ensuring efficient combustion in each cylinder.
(The LR029949GEN is a part number for a manifold fuel supply assembly used in certain Land Rover models, including those with the Puma 2.2 diesel engine, commonly found in the Defender from 2012 to 2016).
Components:
This part may include:
- Fuel Rail: A high-pressure fuel rail that supplies fuel to the injectors.
- Fuel Pressure Sensor: Monitors the fuel pressure in the rail and sends signals to the engine control unit (ECU) to ensure proper fuel delivery.
- Connectors: To the fuel lines and possibly to the high-pressure pump and injectors.
Issues That Could Arise:
- Fuel Leaks: Over time, seals and connectors may degrade, leading to fuel leaks.
- Pressure Problems: A malfunction in the manifold could result in improper fuel pressure, causing poor engine performance.
- Injector Issues: If the manifold isn’t delivering fuel evenly or at the right pressure, injectors may not function properly, leading to misfires or poor fuel economy.
Symptoms of a Faulty Manifold Fuel Supply:
- Engine Misfires or rough running.
- Reduced Performance: Lack of power or sluggish acceleration.
- Check Engine Light: Fuel-related errors in the ECU may cause the light to come on.
- Fuel Leaks: A visible leak near the manifold or a strong smell of fuel.
Replacement:
If the manifold fuel supply fails, it should be replaced promptly to avoid damaging other parts of the fuel system. Always ensure that replacement parts are genuine or OEM quality to maintain the reliability of the vehicle’s fuel delivery system.
This part is particularly important in high-pressure common rail systems, such as in the Land Rover Puma 2.2 engine, where consistent fuel pressure is key to efficient operation.
Recommend shopping at:
- https://www.famousfour.co.uk/new_parts/ff_part?part=26445
