Cause |
Elimination |
A. A cold engine does not start or starts poorly. |
- Defect in the power supply relay.
- The fuel pump does not pump fuel or does not pump enough fuel.
- Pressure regulator defective.
- The vacuum system is not sealed.
- Coolant temperature sensor defective.
- Throttle position sensor defective.
- Defect in the ignition system.
- Defective speed sensor or broken wire connection.
- Defect in the control unit.
- The suction system is not tight (additional air appears).
|
- Check and replace if necessary.
- Is there gasoline in the tank? Check the pump connections. If necessary, remove the pump from the tank, measure the feed flow.
- Measure the system pressure.
- Check all hose connections.
- Check it out.
- Check it out.
- The ignition system should be checked.
- Check and replace if necessary.
- Check it out.
- Check all hose connections.
|
B. The hot engine does not start or starts poorly. |
- See A1 – A10.
- Defect in the absolute pressure sensor.
- The injectors are not sealed.
|
Check it out. |
B. The engine starts to move, but then stops again. |
- The throttle control motor does not work.
- See A6.
- Defect in the lambda sensor.
|
- Check the adjustment motor, replace if necessary.
- —
- Check the operation, replace if necessary.
|
G. Cold engine shakes at idle. |
- See A5.
- See B1.
|
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D. The hot engine shakes at idle. |
|
See B1. |
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E. Idle speed is interrupted when a strong current consumer is turned on or when the servo control is fully turned. |
|
See B1. |
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G. The engine misfires. |
- The fuel filter is dirty.
- See A2 and A7.
- See B2.
- See B3.
|
- Replace the filter.
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3. Fluctuations in rotation speed at 2000 – 4000 rpm |
|
See A6 and A 10. |
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I. The engine runs intermittently and then stops. |
|
See A3 and A7. |
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K. The engine power is insufficient. |
- See A2, A4 and A6.
- The throttle valve does not set to the full throttle position.
|
- —
- Adjust the gas pedal tension.
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L. High fuel consumption. |
|
See A8. |
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M. The engine often does not start. |
- See A1 – A10.
- See B1 – B3.
- The injection system safety switch interrupts the fuel supply (after an accident, a strong collision, a leak in the fuel supply system from the tank to the injectors).
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- Remove the plugs in the right side trim (footwell). Press the pop-up button. Set the ignition key to the working position, the fuel pump should be audibly running. If not, eliminate leaks in the system.
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