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CAC Gasoline Engine Maintenance And Servicing Manual 86
If stepper motor needs to be replaced, remove the positive connector first and replace actuator. Then turn ignition key to position 1(accessory position), ECU will readjust actuator position(to limit switch) and Only CHECK-UP1 tester may be applied to check whether it’s running properly.
3.1MARWAL low pressure fuel pump“MSS070”
The fuel pump in this system is atmospheric positive shift (see figure. 142). It is designed to work Fuel pump supplies the fuel to fuel injectors and is controlled directly by ECUD to ensure: ·The fuel pump will close when engine speed drops under the minimum starting speed or engine stops. · The fuel pump signal is timed. once ignition switch is on and engine is not started , there will be a · Under the engine running and starting conditions, the fuel pump signal will not change.
Fig. 142 fuel pump Fig. 141 Idle step motor and air by-pass valve
valve idle actuator by-pass channel throttle throttle valve leak by-pass air control.
feature parameter electric connector outlet operation temperature spiral resistance
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