Notes to the procedures for troubleshooting

Notes to the procedures for troubleshooting
1. The appearance of irregularities in the engine, as a rule, but due to the fuel control system (injection system). Therefore, when pois ke ¬ ¬ shooting first need to check the status Dimo ??elements of the following systems.
a) Power supply system: ac-kumulyatornuyu battery, fuses, fuse.
b) grounding the housing.
c) the supply of fuel: fuel leaks, fuel filter, fuel pump,
g) Ignition system: spark, high volt ¬ conductor; distributor, ignition coil,switch.
e) air supply system: under ¬ wc air.
e) management system to reduce emissions: crankcase ventilation system; retsir ¬ kulyatsiya exhaust (for the motion with gatelya ¬ meter of air).
g) Other: ignition advance angle ¬ of, the normal speed of idling.
2. The most common reason is a bad con-tact in the plug. On examination, connectors, make sure:
a) The findings are not bent;
b) there is a full retraction and locking connector;
c) there is no signal change in the post ¬ nodding at terminals or in their on ¬ kachivanii.
3. Carefully check all the reasons before replacing the electronic control unit, as it is - an expensive and high-quality site.
4. To check the electrical circuits using volt / ohm meter digital or analogue type with a high input impedance ¬ nym (10 k / V mini ¬ mum).
Procedure for troubleshooting engine does not start, or starts with difficulty (at the crankshaft is rotated or not rotated slowly)
Check the source of electrical energy
1. Battery:
a) compounds;
b) density - belt - a system of charging;
c) voltage.
2. Fuses.
Check the engine starting system
1. Ignition.
2. Starter.
3. Switch ban start (on models with automatic transmission).
4. Wires / connections.
Engine will not start or is difficult (at the crankshaft is rotated easily)
Check the diagnostic system ¬ th (check off the acoustic diagnostic code).
Check the air intake system in ¬ IU air supply, as well as it the following elements:
1. Oil filler cap.
2. Dipstick.
3. Hose connections.
4. Hose system of forced ventilation crankcase.
5. EGR system ¬ Shih gas (valve is always open). Check sparking
1. High-voltage wires.
2. Distributor.
3. Ignition coil, switch. Check the ignition advance angle, the normal mode for Gahnia ho-cavity of the pre-closing the conclusions of "TE1" and "E1" diag-nosticheskogo connector Check the fuel supply to the formula ¬ sunkam
Pre-check for fuel in the tank.
Then short the findings "+ B" and "PP" diagnostic connector and convincing re-quest in the presence of fuel pressure in the fuel.
Then check the following items:
1. Fuel lines (leaks - deformation).
2. Fuses.
3. Fuel pump relay.
4. Fuel pump.
5. Fuel filter.
6. Fuel pressure regulator. (For systems with a meter of air) Check the fuel pump switch in flow of air. Measure the resistance between the water-you "RS" and "E1" at full flow measuring plate.
Check spark plugs
1. Check the electrode gap.
2. If necessary, check the "compress".
3. Check clearance in the valves (the engine is cold).
If all the candles wet, be sure to:
• the absence of a short circuit or leakage of working nozzles
• the absence of short circuits in electrical wiring in nozzles;
• leaks in the nozzle ho ¬ lodnogo run;
• serviceability of thermal cold start injector.
Check the intake valves for the presence of carbon
Check the supply valve of the additional air.
1. The air valve.
2. Coolant hoses.
3. Air