The Toyota Vellfire 20 Series (ANH20), produced between 2008 and 2014, uses an electric in-tank fuel pump as part of its fuel delivery system. Here’s a technical overview of the fuel pump in the ANH20 Vellfire:

Fuel Pump Type:

• Electric in-tank pump (located inside the fuel tank)
• Integrated with the fuel sender assembly (includes pump, fuel filter, pressure regulator, and level sensor)

Function:

• Delivers pressurized fuel from the tank to the fuel rail/injectors
• Maintains consistent fuel pressure for optimal engine performance and efficiency

Operating Voltage:

• 12V, ECU-controlled operation based on engine demands

Typical Components in the Assembly:

1. Electric Motor: Drives the pump impeller
2. Fuel Filter & Strainer: Filters out debris before fuel reaches the engine
3. Pressure Regulator (sometimes separate): Maintains consistent pressure (around 3.0–3.5 bar)
4. Fuel Level Sensor: Sends fuel level data to the dashboard

Common Symptoms of Fuel Pump Issues:

• Engine cranks but won’t start
• Loss of power under load
• Whining noise from the fuel tank
• Poor fuel economy or rough idle

Would you like a diagram or part number reference for the fuel pump assembly?