Attention! Before unscrewing the fuel lines, clean them with a cold cleaner.
Cause | Elimination Method |
Engine does not start or starts poorly | |
Engine does not warm up | Check heating system |
No voltage on traction switch | Connect the voltage indicator to the traction switch, turn off the ignition. The LED must be on, otherwise find and repair the open |
The electromagnetic switch of draft is weakened, is faulty | Check the reliability of fastening and contact with the mass of the ignition switch. Alternately turn the ignition on and off, while the traction switch should click |
Faulty fuel supply | Check fuel supply |
Fuel lines kinked, clogged, leaking, porous | Clean fuel lines |
Clogged fuel filter | Replace fuel filter |
In winter: ice in the filter and fuel lines | Drive the car into a heated garage and warm up the engine |
Fuel tank vent does not work. The fuel strainer in the fuel tank is dirty | Clean filter |
The start of fuel supply is knocked down | Check and adjust the feed start |
Faulty injectors | Check the injectors, unscrew the union nuts in sequence and check the operation of the cylinders |
Faulty injection pump | As a test, install a new injection pump |
The engine runs jerky at idle, when starting off | |
Idle speed incorrectly adjusted | Adjust idle speed |
Stuck gas drive | Restore ease of movement, adjust |
Loose fuel lines at fuel pump or fuel filter | Replace fuel lines, secure with clamps, tighten hollow bolts |
Loose, cracked or worn base plate (rear mount) or console (front mount) injection pump | Check base plate or console |
The empty bolts of the fuel supply and return pipelines are interchanged | Install hollow bolts correctly. The fuel return pipe hollow bolt is provided with a return flow throttle and is marked "OUT" on the hex head |
Too much fuel consumption | |
Air filter dirty | Replace filter element |
Leaky fuel supply system | Visually check all fuel lines (supply, return and injection), fuel filter and injection pump |
Clogged fuel return line | Blow out the return line from the injection pump to the fuel tank. Replace the bypass throttle in the hollow bolt of the fuel return line |
Idle speed and limit speed too high | Adjust RPM |
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