Malfunctions of electronic control units can only be found and eliminated with the help of special instrumentation. When checking for sparking, observe the precautions indicated in the relevant chapter.
For a diesel engine, check the preheater and fuel system.
The engine starts poorly or does not start at all
Fuse defective:
- fuel pump with electric drive;
- electronic injection system;
- preheating systems.
Check fuse.
Ignition system malfunction
Have the ignition system checked by a workshop.
Faulty engine control unit
Check the engine control unit in the workshop.
Faulty, contaminated fuel system
Check fuel pump and lines.
Starter turns too slowly
Charge the battery. Check the power supply to the starter. Clean contacts.
Anti-theft system does not turn off
Use a spare ignition key. Check the anti-theft system.
Defective cylinder head gasket
Replace gasket.