| Malfunction |
Possible reason |
Way of elimination |
|
The engine (cold) is got hardly or not got
|
The injector of cold start or the temperature switch is faulty |
Check an injector of cold start and the temperature switch. Replace faulty components (look the Section Check of functioning and replacement of an injector of cold start and the temperature switch) |
| The fuel pump does not work |
Check a safety lock of the fuel pump and the relay of the fuel pump (look Sections Check of pressure of fuel / the fuel pump and Removal and installation of the fuel pump, the intermediate pump and the fuel level sensor) |
| Jams or залипает in open situation a petal (valve) of a measuring instrument of a stream of air |
Examine a measuring instrument of a stream of air about damages (look the Section functioning Check, removal and installation of a measuring instrument of a stream of air) |
| Wrong pressure of fuel |
Check pressure in system (look the Section Check of pressure of fuel / the fuel pump). Check a regulator of pressure of fuel (The section Check of functioning and replacement of a regulator of pressure of fuel) |
| Leakages of inlet air |
Examine all vacuum lines, air lines, epiploons of the oil filter and masloizmeritelny щупа |
| Fuel injectors are corked or do not work |
Check fuel injectors (look the Section Check of functioning and replacement of fuel injectors) and a cable |
| The sensor of temperature of a cooler or problem with wires is faulty |
Check the sensor of temperature of a cooler (look Head of the Control system of the engine and decrease in toxicity of the fulfilled gases, the Section Check of pressure of fuel / the fuel pump) |
| The sensor of provision of a throttle (TPS) is incorrectly adjusted |
Check TPS adjustment (look Head of the Control system of the engine and decrease in toxicity of the fulfilled gases, Undressed Information sensors) |
| Wrong moment of ignition |
Check the ignition moment (look Head ignition System). Check the vacuum proof-reader of ignition |
| Dirt or other inclusions in fuel |
Check fuel and, if necessary, merge fuel from a tank |
| ECU is faulty |
Check ECU at the dealer or other expert |
|
The engine (heated-up) is got hardly or not got
|
Leak in an injector of cold start or constantly open condition |
Check an injector of cold start and the temperature switch (look the Section Check of functioning and replacement of an injector of cold start and the temperature switch) |
| Wrong pressure of fuel |
Check the fuel pump (ы). If necessary replace (look the Section Check of pressure of fuel / the fuel pump) |
| Insignificant residual pressure of fuel |
Check residual pressure of fuel. Replace if necessary the fuel pump or the fuel accumulator (look the Section Check of functioning and replacement of a regulator of pressure of fuel) |
| Leak (утески) fuels |
Examine about leaks fuel lines and fuel injectors. Eliminate leaks as it is specified (look Head the Power supply system) |
| The sensor of temperature of a cooler or problem with wires is faulty |
Check the sensor of temperature of a cooler (look Head of the Control system of the engine and decrease in toxicity of the fulfilled gases, Undressed Information sensors) |
| Gas stopper in топливопроводе (hot weather) |
Check pressure of fuel (look the Section Check of pressure of fuel / the fuel pump) |
| Malfunction of EVAP system (if it is applied) |
Check EVAP system (look Head of the Control system of the engine and decrease in toxicity of the fulfilled gases, the Section catching System паров gasoline (EVAP)) |
| Wrong moment of ignition |
Check the ignition moment (look Head ignition System). Check a vacuum regulator of ignition |
| ECU is faulty |
Check ECU at the dealer or other expert |
| Malfunction of the monitoring system of idling |
Check the air valve of stabilization of idling (look the Section functioning Check, adjustment and replacement of the air valve of stabilization of idling) |
|
The engine under loading glitches and twitches
|
The fuel injector is corked or faulty |
Check fuel injectors. Check existence of the corked fuel lines. Replace faulty injectors (look the Section Check of functioning and replacement of fuel injectors) |
| Wrong pressure of fuel |
Check pressure in fuel system (look the Section Check of pressure of fuel / the fuel pump). Check a regulator of pressure of fuel (look the Section Check of functioning and replacement of a regulator of pressure of fuel) |
| Leakage (leakages) of fuel |
Check existence of leaks in fuel lines and fuel injectors (look Head the Power supply system) |
| Engine service |
Adjust the engine (look Head Routine maintenance of the car). Check a cover of the distributor of ignition, a begunok, high-voltage wires and spark plugs and replace any faulty components |
| Jams or залипает in open situation a petal (valve) of a measuring instrument of a stream of air |
Examine about damage a measuring instrument of a stream of air (look the Section functioning Check, removal and installation of a measuring instrument of a stream of air) |
| Leakage of inlet air |
Examine all vacuum lines, air lines, epiploons of the oil filter and masloizmeritelny щупа |
|
The engine has unstable turns of idling
|
The air valve of stabilization of idling is faulty |
Check the air valve of stabilization of idling (look the Section functioning Check, adjustment and replacement of the air valve of stabilization of idling) |
| There is no food of the valve of stabilization of idling |
Check the relay of the stabilizer of idling and a wire (look Head System of onboard electric equipment) |
| The vacuum regulator of ignition is faulty |
Check a vacuum regulator of ignition and the electronic relay of a vacuum regulator of ignition |
| The block of control of idling is faulty |
Check at the dealer the block of control of idling |
| Malfunction |
Possible reason |
Way of elimination |
|
Capacity loss
|
The sensor of temperature of a cooler or wire break to the sensor is faulty |
Check the sensor of temperature of a cooler and a wire. Correct a wire or replace the sensor if it is faulty (look Head of the Control system of the engine and decrease in toxicity of the fulfilled gases) |
| Wrong pressure of fuel |
Check pressure of fuel in the fuel pump and the intermediate pump if it is applied (look the Section Check of pressure of fuel / the fuel pump) |
| The valve of a throttle opens not completely |
Check adjustment of a cable of an accelerator to be convinced of complete opening of the valve of a throttle. |
| Adjust a cable if it is necessary (look the Section Check, adjustment and replacement of a cable of an accelerator) |
|
The engine (cold) is started hardly or not started
|
The injector of cold start or the temperature switch (only on early systems Motronic) is faulty |
Check an injector of cold start and the temperature switch. Replace faulty components (look the Section Check of functioning and replacement of an injector of cold start and the temperature switch) |
| The fuel pump does not work |
Check a safety lock and the relay of the fuel pump (look the Section pressure Removal in system of injection of fuel and Check of pressure of fuel / the fuel pump) |
| Jams or залипает in open situation a petal (valve) of a measuring instrument of a stream of air |
Examine about damage a measuring instrument of a stream of air (look the Section functioning Check, removal and installation of a measuring instrument of a stream of air) |
| Wrong pressure of fuel |
Check pressure in system (look the Section Check of pressure of fuel / the fuel pump) |
| Leakages of inlet air |
Examine all vacuum lines, air lines, epiploons of the oil filter and masloizmeritelny щупа |
| Fuel injectors are corked or do not work |
Check fuel injectors (look the Section Check of functioning and replacement of fuel injectors) and a cable |
| The sensor of temperature of a cooler or problem with wires is faulty |
Check the sensor of temperature of a cooler (look Head of the Control system of the engine and decrease in toxicity of the fulfilled gases, Undressed Information sensors) |
| TPS (the sensor of provision of a throttle) is incorrectly adjusted |
Check TPS adjustment (look Head of the Control system of the engine and decrease in toxicity of the fulfilled gases, Undressed Information sensors) |
| Dirt or other inclusions in fuel |
Check fuel and, if necessary, merge it from a tank |
| ECU is faulty |
Check ECU at the dealer or other expert |
| The signal of provision of a cranked shaft vanishes |
The sensor of situation or flywheel is faulty, or the reperny pin is not lost |
|
The engine (heated-up) is started hardly or not started
|
The injector of cold start (only on early systems Motronic) proceeds or is constantly open |
Check an injector of cold start and the temperature switch (look the Section Check of functioning and replacement of an injector of cold start and the temperature switch) |
| Wrong pressure of fuel |
Check pressure of fuel (look the Section Check of pressure of fuel / the fuel pump) |
| Insignificant residual pressure of fuel |
Check residual pressure of fuel system (look the Section Check of pressure of fuel / the fuel pump) |
| Leak (and) fuels |
Examine fuel lines and injectors about leaks. If necessary, eliminate leaks |
| The sensor of temperature of a cooler or problem with wires is faulty |
Check the sensor of temperature of a cooler (look Head of the Control system of the engine and decrease in toxicity of the fulfilled gases, Undressed Information sensors) |
| Gas stopper in a gasoline pipe line (hot weather) |
Check pressure of fuel (look the Section Check of pressure of fuel / the fuel pump) |
| The EVAP system is faulty |
Check EVAP system (look Head of the Control system of the engine and decrease in toxicity of the fulfilled gases, the Section catching System паров gasoline (EVAP)) |
| The idling monitoring system is faulty |
Check ECU at the dealer or other expert |
| The oxygen sensor (where it is applied) is faulty |
Check the air valve of stabilization of idling (look the Section functioning Check, adjustment and replacement of the air valve of stabilization of idling) |
| Check the oxygen sensor (look Head of the Control system of the engine and decrease in toxicity of the fulfilled gases, Undressed Information sensors) |
|
The engine under loading glitches and twitches
|
The fuel injector is corked |
Check fuel injectors. Check passableness of lines of injectors. Replace faulty injectors (look the Section Check of functioning and replacement of fuel injectors) |
| Wrong pressure of fuel |
Check pressure of fuel system (look the Section Check of pressure of fuel / the fuel pump). Check a regulator of pressure of fuel (look the Section Check of functioning and replacement of a regulator of pressure of fuel) |
| Leak (and) fuels |
Check on existence of leaks fuel lines and injectors (look Head the Power supply system) |
| Engine service |
Adjust the engine (look Head Routine maintenance of the car). Check a distributor cover, a begunok, high-voltage wires and spark plugs and replace all faulty components |
| Jams or залипает in open situation a petal (valve) of a measuring instrument of a stream of air |
Examine on existence of damage of a measuring instrument of a stream of air (look the Section functioning Check, removal and installation of a measuring instrument of a stream of air) |
| Leakages of inlet air |
Examine all vacuum lines, air lines, epiploons of the oil filter and masloizmeritelny щупа |
| The sensor of provision of a throttle (TPS) is incorrectly adjusted |
Check TPS adjustment (look Head of the Control system of the engine and decrease in toxicity of the fulfilled gases) |
|
The raised turns of idling of the engine
|
Jams an accelerator pedal, a cable or the throttle valve |
Check existence of the worn-out or broken components, the overwound cable or other damages. Replace faulty components |
| Leakage of air in the throttle valve |
Examine the valve of a throttle and adjust or, if necessary, replace |
|
Unstable turns of idling of the engine
|
The air valve of stabilization of idling is faulty |
Check the air valve of stabilization of idling (look the Section functioning Check, adjustment and replacement of the air valve of stabilization of idling) |
| There is no food of the valve of stabilization of idling |
Check the relay of the stabilizer of idling and a wire (look Head System of onboard electric equipment) |
| The block of control of idling is faulty |
Check at the dealer the block of control of idling |
|
The increased fuel consumption
|
The injector of cold start (only early systems Motronic) proceeds |
Check and, if necessary, replace an injector of cold start (look the Section Check of functioning and replacement of an injector of cold start and the temperature switch) |
| The oxygen sensor (where it is applied) is faulty |
Check the oxygen sensor (look Head of the Control system of the engine and decrease in toxicity of the fulfilled gases, Undressed Information sensors) |
| Jams lay brakes/brakes brake |
Check a lay brake / brake systems (look Head Brake system) |
| Low pressure in tires |
Check pressure in tires |