Jerks during acceleration (VAZ-2115)

The reason for jerks during acceleration may be, as in the previous case (see "A jerk at the start of movement" in the subsection "The car moves in jerks"), insufficient fuel pressure in the fuel line.

The ECU, having received a signal from the throttle position sensor about intensive opening of the throttle valve at a large angle, tries to increase the fuel supply as much as possible, but is unable to do so due to the low fuel pressure. The reasons for this phenomenon and the method of checking, see "Jerking at the moment of starting to move" in the subsection "The car moves in jerks".

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The text was reviewed by the specialist: Grigory Vologodtsev

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VAZ-2115: Vehicle malfunctions

A jerk at the start of movement
The car moves in jerks
Engine diagnostics by the appearance of spark plugs
Engine misfires
Idle speed is gone

Jerks during steady motion
The car accelerates poorly
Adjusting the clutch drive
The engine stalled while driving
The engine oil pressure has dropped

More articles from other manuals on VAZ cars:
➠ The car moves in jerks VAZ-21099 (1990-2004)
➠ Acceleration dynamics of the car VAZ-2110 (1995-2007)

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