Hyundai Elantra
Petrol engines 1,6, 1,8 and 2,0 l
The diesel engine of 2,0 l
Greasing system
Cooling system
- Fuel system
   - Fuel system of petrol engines
      Search and elimination of malfunctions
      Check of frequency of rotation of idling
      Check of the fuel pump
      Replacement of the fuel filter
      Replacement of the terminator of overflow (the double-thread valve)
      Replacement of the gauge of level of fuel
      Checks of system of injection MFI
      Control lamp of malfunctions (MIL)
      Diagnostic codes of malfunctions
      Fuel atomizers
      The modulator of management of frequency of rotation of a cranked shaft of the engine idling (ISC)
      The gauge of speed of the car (VSS)
      The detonation gauge (KS)
      The ignition lock (ST) and the switch of ranges (TR) in cars with an automatic transmission
      The ignition lock (ST) in cars with a mechanical transmission
      The engine management block
      The switch and the relay of a central air of air
      The electromagnetic valve of clearing of the canister of system of catching of steams of fuel (EVAP)
      The main relay MFI
      The ignition coil
      The fuel pump
      The gauge of acceleration APS
      The oil valve (OCV)
      Fuel highway and atomizers
      Throttle knot
      Fuel tank
      Pedal and accelerator cable
    Fuel system of diesel engines
Monitoring systems and decrease in toxicity of the fulfilled gases
Ignition system
System of preliminary heating of the diesel engine
Mechanical transmission
Automatic transmission
Power shafts, forward and back axes
Suspension bracket
Brake system
Air central air
The electric equipment
Electric schemes

Check of frequency of rotation of idling

Before check of frequency of rotation of idling be convinced that spark plugs, fuel atomizers, the modulator of frequency of rotation of idling (ISC), a compression etc. are in an order.

Check conditions

    The engine should be heated-up to temperature of a cooling liquid 80–95C. Headlights, dimensional illumination, the fan of a radiator and all consumers of electric energy should be switched off. The transmission should be established in neutral position. The steering wheel should be established for movement directly forward.


    Connect a tachometre to a primary winding of the coil of ignition or the scanner to a diagnostic socket. Start up the engine and leave it to work on frequency of rotation of a cranked shaft idling. No more, than on 5 with increase frequency of rotation of a cranked shaft to 2000–3000мин–1 then allow to it to work idling within 2 minutes On a tachometre define frequency of rotation of idling.

Frequency of rotation of idling:

The engine of 1,6 l: 850100 mines-1
Engines of 1,8 and 2,0 l: 700100 mines–1