Fuse 13, 21, 25, 27 or 28 defective.
- Replace the faulty fuse.
Defective additional resistance wire.
- Check the wire and replace it if necessary.
The fuel pump does not supply fuel, or the fuel supply is insufficient.
- Is there fuel? Check the pump and measure the fuel supply from the pump.
Fuel pressure regulator defective.
- Measure the pressure.
Coolant temperature sensor defective.
- Check the sensor.
Throttle position sensor defective.
- Check the sensor in the workshop
Control unit defect
- Have the control unit checked at a workshop.
Defective wire between the Hall sensor and the control unit.
- Check the wire.
The engine is sucking in extraneous air.
- Perform a visual inspection of the engine.
A warmed-up engine does not start at all or starts poorly
Defective additional resistance wire.
- Check the wire and replace it if necessary.
The fuel pump does not supply fuel, or the fuel supply is insufficient.
- Is there fuel? Check the pump and measure the fuel supply from the pump.
Fuel pressure regulator defective.
- Measure the pressure.
Coolant temperature sensor defective.
- Check the sensor.
Throttle position sensor defective.
- Have the sensor checked at a workshop.
Control unit defective.
- Have the control unit checked at a workshop.
Defective wire between the Hall sensor and the control unit.
- Check the wire.
The engine is sucking in extraneous air.
- Perform a visual inspection of the engine.
The nozzle is leaking.
- Check the injector.
The engine starts but stalls almost immediately
The idle speed control does not work.
- Check the regulator.
Throttle position sensor defective.
- Have the sensor checked at a workshop.
Lambda probe defect.
- Check the operation of the lambda probe and replace it if necessary.
Cold engine vibrates at idle
Coolant temperature sensor defective.
- Check the sensor.
The idle speed control does not work.
- Check the regulator.
Warm engine vibrates at idle
The idle speed control does not work.
- Check the regulator.
Idle speed drops when connecting powerful current consumers or when the power steering is operating
The idle speed control does not work.
- Check the regulator.
The engine runs with misfires.
The fuel filter is clogged.
- Replace the fuel filter.
The fuel pump does not supply fuel or the fuel supply is insufficient.
- Is there fuel? Check the pump and measure the fuel supply from the pump.
The nozzle is leaking.
- Check the injector.
Lambda probe defect
- Check the operation of the lambda probe and replace it if necessary.
Fluctuations in engine operation at 2000-3000 rpm
Throttle position sensor defective.
- Have the sensor checked at a workshop.
The engine runs jerkily
The fuel pump does not supply fuel or the fuel supply is insufficient.
- Is there fuel? Check the pump and measure the fuel supply from the pump.
Low effective engine power
The fuel pump does not supply fuel or the fuel supply is insufficient.
- Is there fuel? Check the pump and measure the fuel supply from the pump.
Throttle position sensor defective.
- Have the sensor checked at a workshop.
The engine is sucking in extraneous air.
- Perform a visual inspection of the engine.
Lambda probe defect.
- Check the operation of the lambda probe and replace it if necessary
The throttle valve does not move to the "Full Throttle" position.
- Adjust the throttle cable.
Backfire
Fuel pressure regulator defective.
- Measure the pressure.
Lambda probe defect.
- Check the operation of the lambda probe and replace it if necessary.
Fuel consumption too high
Throttle position sensor defective.
- Have the sensor checked at a workshop.