Fuse 13, 21, 27, 28 or 32 defective
- Replace fuse
Defective fuel pump relay
- Check relay and replace if necessary
The fuel pump does not supply fuel or the fuel supply is insufficient
- Has fuel been filled? Check the pump and measure the fuel supply by the pump
Defective fuel pressure regulator.
- Measure fuel pressure
Idle speed stabilization valve defect
- Check valve
Control unit defect
- Check box in workshop
No signal from engine speed sensor
- Check sensor wire
The engine sucks in foreign air
- Perform a visual inspection of the engine and all hose attachment points
A warm engine does not start at all or starts poorly
Defective low pressure hose to fuel pressure regulator
- Check the hose
Fuse 13, 21, 27, 28 or 32 defective
- Replace fuse
Defective fuel pump relay
- Check relay and replace if necessary
The fuel pump does not supply fuel or the fuel supply is insufficient
- Has fuel been filled? Check the pump and measure the fuel supply by the pump
Defective fuel pressure regulator.
- Measure fuel pressure
No signal from engine speed sensor
- Check sensor wire
Nozzle leakage
- Check injectors
Defective coolant temperature sensor
- Check sensor
Engine starts, but soon stalls
Fuse 13, 21, 27, 28 or 32 defective
- Replace fuse
Idle speed stabilization valve defect
- Check valve
Defective low pressure hose to fuel pressure regulator
- Check the hose
CO value is not correct
- Check injection
Defective air mass flow meter sensor (MPI) or intake air temperature sensor, or intake manifold pressure sensor (MPFI)
- Check sensors
Throttle Position Sensor Defect
- Check throttle sensor
Cold engine vibrates at idle
Idle speed stabilization valve defect
- Check valve
Warm engine vibrates at idle
Defective fuel pressure regulator.
- Measure fuel pressure
Idle speed stabilization valve defect
- Check valve
Defective low pressure hose to fuel pressure regulator
- Check the hose
Too high idling speed on a warm engine
Fuel pressure regulator defect
- Measure fuel pressure
Engine runs intermittently
Clogged fuel filter
- Replace fuel filter
The fuel pump does not supply fuel or the fuel supply is insufficient
- Has fuel been filled? Check the pump and measure the fuel supply by the pump
Idle speed stabilization valve defect
- Check valve
Defective fuel pump relay
- Check relay and replace if necessary
Defective low pressure hose to fuel pressure regulator
- Check the hose
CO value is not correct
- Check injection
Engine runs rough and stalls
Fuel pump delivers fuel unevenly
- Measure pump flow
Low effective engine power
The fuel pump does not supply fuel or the fuel supply is insufficient
- Has fuel been filled? Check the pump and measure the fuel supply by the pump
Defective fuel pressure regulator.
- Measure fuel pressure
The engine sucks in foreign air
- Perform a visual inspection of the engine and all hose attachment points
Defective low pressure hose to fuel pressure regulator
- Check the hose
Defective air mass flow meter sensor (MPI) or intake air temperature sensor, or intake manifold pressure sensor (MPFI)
- Check sensors
Throttle does not move to position «Full throttle»
- Adjust cable «gas»
Reverse flash in the intake manifold
Defective fuel pressure regulator.
- Measure fuel pressure
Defective low pressure hose to fuel pressure regulator
- Check the hose
Increased fuel consumption
CO value is not correct
- Check injection
Defective low pressure hose to fuel pressure regulator
- Check the hose
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