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

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Automobile Engineering in ME
Incorrect steering axis inclination (S.A.I.) causes

Tendency to assume toe-out orientation
Poor recovery of the steering wheel after making a turn
Generation of a braking effect at tight corners
The vehicle to pull to the side of lesser inclination

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