There is no fuel in the tank
- Refuel
Too short preheating time
- Preheat until the preheat control lamp goes off
Cold start accelerator rod not extended
- Pull out the cold start accelerator link
Defective preheating system
- Fix the defect
The fuel shut-off valve is loose or defective. Valve power wire may be broken
- Check fuel shut-off valve
Air in the fuel system
- Operate the starter until the pump begins to supply fuel
Faulty fuel supply system
- Disconnect the fuel line from the injector and check that fuel is flowing. Check hoses. Perhaps they are clogged, bent. The fuel filter may be clogged. In winter, paraffinization of diesel fuel is possible.
Incorrectly connected to the injectors high-pressure fuel lines after their dismantling
- Check fuel line connections. Fuel line A from the injection pump must go to the injector of cylinder No. 1, B - injector of cylinder No. 3, C - injector of cylinder No. 4, D - injector of cylinder No. 2.
Injection pump supply misadjusted
- Adjust fuel injection pump
Defect or contamination of one or more nozzles. It is possible that the injection pressure is incorrect
- Check and repair (In workshop) or replace
Injection pump defect
- Replace injection pump
Poor or uneven engine idling
Incorrect idle adjustment
- Adjust idle
Accelerator cable incorrectly adjusted or difficult to move
- Adjust the accelerator cable or «move out» his
Loose fuel hose between fuel filter and pump
- Tighten the hose nuts
Loose or broken mounting of the rear of the injection pump
- Fasten injection pump
Loose engine mount
- Tighten the engine mounting bolts and nuts on the suspension mounts
Injection pump misadjusted
- Adjust injection pump
Exhaust outlet in black, white or blue
Engine not warmed up
- Check the exhaust gas output after the engine has reached operating temperature
Air filter dirty
- Clean filter or replace
Fuel filter dirty
- Replace fuel filter
Adjustment of the maximum number of revolutions of the engine is violated
- Adjust engine speed
Nozzle leakage
- Check injectors and replace if necessary
Injector needle sticking or broken needle
- Check injectors and replace faulty ones
Low injection pressure
- Check injectors and adjust injection pressure if necessary
Low effective engine power. The car does not develop the desired speed
Short stroke of the accelerator pedal
- Adjust the accelerator cable. It is possible that the accelerator pedal travel has become short due to an additional rug on the floor near the pedal
Accelerator cable incorrectly adjusted
- Adjust cable
Loose fuel injection lever
- Fasten lever
Maximum engine speed not reached
- Adjust the maximum engine speed
Leaky or defective injector heat shield gaskets
- Check injector heat shields
Incorrect injector opening pressure
- Adjust the pressure
Increased fuel consumption
Fuel system leaking
- Check all hoses, lines, filter and injection pump
Clogged fuel outlet line
- Blow out the fuel outlet line with compressed air
Excessive idle speed
- Adjust (In workshop)
Too high maximum engine speed
- Adjust (In workshop)
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