Before you begin the following table to find a fault, must be made certain preconditions: errors at startup should be excluded. As for cold and hot engine it is important that: before and during the launch in any case do not "give gas." After starting a hot engine can be a little "add gas".
The tank is filled, the mechanical part of the engine is working, the battery is charged, the starter rotates to the provisions of speed, adjustment of ignition and the ignition system in order, fuel supply system is completely sealed, contamination of the fuel system is unacceptable, crankcase ventilation motor is working, an electrical connection weight (motor-gearbox -kuzov) securely.
CAUSE | SOLUTION |
The engine does not start |
Faulty fuse ?��18
| Replace the fuse |
| When the starter electric fuel pump is not working | Check the fuel pump |
| Faulty fuel pump relay | Check relay |
| Sticking injection valves | Check valves, replace if necessary |
| Faulty valve cold start | Check valve cold start |
| No signals from the following sensors: coolant temperature, throttle potentiometer, Hall sensor, pressure sensor intake pipe | Check wiring. Query the memory of the control unit to the service station |
A cold engine starts but runs irregularly |
| The CO content is not OK | Check CO content and idling |
| Faulty valve cold start | Check valve cold start |
| Defective temperature sensor | Check temperature sensor |
| Faulty fuel pressure regulator | Check regulator at the station |
A warm engine is started badly, it works irregularly |
| Leaking valve cold start | Check valve cold start |
| Leaky air intake system | Check the suction system: To do this, allow the engine to idle, spread gasoline seat seals and connections around the intake tract. If turnover rise, eliminate air leaks place |
| Leaky vacuum hose to the fuel pressure regulator | Check pipeline |
| Leaky injection valves | Check valves for injection |
Engine stalls |
| Temporarily interrupts the voltage supply to the fuel pump | Check the electrical connectors on the fuel pump and the fuel pump relay is mounted on. Check the fuel pump relay. Clean or replace the contacts |
| Poor quality fuel, blistering | Fill the fuel quality |
| Too low fuel supply | Check the amount of feed |
| Faulty fuel filter | Replace the fuel filter |
| Faulty fuel pump | Replace the fuel pump |
| Defective injection valve | Check valves for injection |
| Faulty throttle potentiometer | Check potentiometer |
| Faulty valve of stabilization of idling | Check the valve of stabilization of idling |
Poor throttle response and unstable idling engine |
| Leaky air intake system | Check and seal the suction connection |
| Faulty adjustment of turns of idling | Check the valve of stabilization of idling and adjustment of the lambda |
| Faulty throttle potentiometer | Check the throttle potentiometer |
Hot engine does not start |
| Improper maintenance WITH | Check CO content and idling |
| Too much pressure in the fuel supply system | Check the pressure of the fuel to the service station, if necessary, replace a pressure regulator |
| Kinked or clogged fuel return pipe between the pressure regulator and fuel tank | Clean or replace the pipeline |
| Faulty motor temperature sensor | Check temperature sensor |
| Leaky fuel system | A visual inspection of all connections in the area of the engine and the fuel pump. Tighten all connections |
| Leaky air intake system | Check place seals and connections to the air intake system |
The engine runs on inertia |
| Leaky valves for injection | Check valves for injection |
| Leaking valve cold start | Check valve cold start |
If the fuel will be removed, pre-clean their means of cold clearing.