Automobile Engineering in ME
The fuel pump of a programmed fuel injection (PFI) system operate for two seconds when the ignition is turned to the start position to

Pressurise the fuel system before the engine is started
Supplies a large amount of fuel and thereby creates a choke effect
Warm up and lubricate the pump
Enable the pump's fault diagnosis function to operate

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Automobile Engineering in ME
The basic function of the suspension is to

Automatically correct the effects of over steering
Absorbs vibration and impact forces from the road surface
Ensure that the steering wheel can deliver a suitable amount of steering force
Ensure that wheel alignment is not disturbed during driving

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