ZESTBOLT SERVICE MANUAL

ENGINE 1.3L QUADRAJET (90PS) 73 3A.1.5.2.3 SINGLE FUEL MANIFOLD PIPE (FUEL RAIL) The single fuel manifold (rail) is fited to the intake side of the cylinder head. With a volume of around 20.5 cc, this dampens fuel pressure fluctuations due to: Q pressure pump operation Q injector opening. There is a fuel pressure sensor (2) fitted on one side of the supply manifold (1) . The hydraulic connections (high pressure) between manifold-pump and manifold-injecors are via steel pipes with a bore of 2 mm and external diameter of 6 mm. 3A.1.5.2.4 FUEL METERING VALVE Function: The function of the fuel metering valve is same as DRV in 75Ps to regulate the pressure inside common rail based on ECU command. Operating pressure: 4.5 to 6.0 bar (Absolute) Operating temperature: - 25°C to 70°C Pin out details: The two control signals come from pins 4 and 20 of connector M of control unit ECU. PIN NO. DESCRIPTION 4 Supply 20 Signal

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