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Adjusting the carburetor 2EE Ecotronic
Details carburetor 2Ee
1 - the throttle lever of the second chamber;
2 - pneumatic throttle second chamber;
3 - throttle potentiometer;
4 - the holder;
5 - connector sleeve;
6 - the screw of adjustment of quality (structure) of the mixture;
7 - a sealing ring;
8 - the persistent screw throttle first chamber;
9 - Heating element;
10 - the case of the carburettor;
11 - an arm;
12 - a lining;
13 - float;
14 - the axis of the float;
15 - the needle valve;
16 - screw-threaded plug;
17 - the main fuel jet of the first chamber;
18 - the fuel jet of idling;
19 - the main fuel jet of the second chamber;
20 - wedge;
21 - first diffuser chamber;
| 22 - a lining;
23 - Filter;
24 - choke;
25 - ventilation tube float chamber;
26 - flash suppressor;
27 - a tube of enrichment at full load;
28 - a bolt of fastening of a cover;
29 - a cover of the carburettor;
30 - second diffuser chamber;
31 - an arm;
32 - Drive air damper;
33 - mounting ring actuator;
34 - a stopper;
35 - a sealing ring;
36 - Filter;
37 - the throttle actuator of the first chamber;
38 - ventilation valve;
39 - the valve;
40 - valve seat;
41 - a spring;
42 - air valve;
43 - return valve;
A, B, C - contacts potentiometer |
Carburetor 2Ee 2E2 carburetor is electronically controlled. Drive the choke and throttle actuator first chamber controlled by an electronic control unit with a microprocessor. The control unit is installed in the vehicle near the glove box in the instrument panel. Lambda probe mounted in the muffler, measures the oxygen content in exhaust gases, and delivers a signal to the control unit. The control unit based on the signal from the lambda probe alters the composition of the fuel mixture so that the exhaust gases in the afterburning optimally neutralizer.
The following operations are performed in the same way as the carburetor 2E2:
- Removal and installation of the carburetor;
- Adjustment of the throttle priotkryvaniya second chamber (see. Subsection 3.1.12.5);
- Check the heater inlet pipe (see. Subsection 3.1.12.5);
- Check temperature switch heater inlet pipe (see. Subsection 3.1.12.5).
Check idle speed
In 2Ee no carburetor adjustment screw amount of the mixture.
| PERFORMANCE ORDER | | 1. Warm up the engine, the oil temperature must be at least 60 ?� C. | | 2. Stop the engine, turn off all power consumers (lights, fan, radio and so on. D.). | | 3. Disconnect the crankcase breather hose. | | 4. Connect the control tachometer. | | 5. Start the engine and run at idle. | | 6. Check the idle speed, it must be equal to 750 min -1. If the idling speed is different from the above, identify the problem using the system diagnostics and repair it. |
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Check and adjust the content of carbon monoxide in the exhaust gas
The content of carbon monoxide (CO) in the exhaust gases check special voltage indicator with LED VAG 1527. The nature of the light pulses LED determine the content of CO in the exhaust gases. Do not use the usual warning lights, t. To. Could be damaged electronic systems. Verification is performed on a warm engine oil temperature of 60 ?� C in the following order:
| PERFORMANCE ORDER | | 1. Connect the analyzer to the special nozzle to measure CO in the muffler of the first stage. | | 2. Remove crankcase ventilation hose. |  | 3. Connect voltage tester VAG 1527 to the control terminal 1 blue wire. | | 4. Run the engine for 1 minute to bring the speed higher than 2000 min-1 to lambda probe warmed up to operating temperature. | | 5. The LED on the voltage indicator 2 at idling speed must flash at a frequency of 1.5 times per second (2 times for 3 seconds). If the LED is lit constantly, then the mixture is too rich if the LED is not lit, the mixture is poor. If the LED blinks 25 times per second, so the lambda probe or warmed up to operating temperature, or faulty or damaged wire to the lambda probe. |
A warning  Lambda probe may become clogged with soot, which can cause malfunction zonda.Chtoby clean the probe, it is necessary to make a smooth ride on the highway for 20 minutes, then repeat the test.
| | 6. Check the CO level with the help of gas analyzer. It should be 0.6%. If, despite the correct readings LED voltage indicator, the level of CO differs from specified, it must be adjusted. To do this, disconnect the wire from the lambda probe oxygen sensor socket insulated with electrical tape. LED voltage indicator should blink at the same time. Remove the plastic plug screw 6 (see. Fig. Carburettor parts 2Ee), which drilled a hole in the cap, screw and screw it in him to pull the plug. Turn the screw 6, adjust the CO content in the exhaust gases. | | 7. Insert the new plug, disconnect the analyzer and voltage indicator. Connect the wires to the lambda probe. Connect the crankcase ventilation hose. |
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A simplified check of the system Ecotronic Failure of the lambda probe system Ecotronic works in the emergency program. To check the operation of the emergency program, disconnect the lambda probe and monitor the opening and closing of the air damper. If the valve is functioning, then it triggered the emergency operation.
| PERFORMANCE ORDER | | 1. Warm up the engine, the oil temperature should not be below 60 ?� C. | | 2. Remove the air filter. | | 3. Disconnect the vacuum hose from the carburetor 24 (see. Fig. Air filter engine displacement of 1.1 and 1.3 liters). Seal off pipe on the carburettor. | | 4. Start the engine and leave to idle. |  | 5. Disconnect the lambda probe 1 on terminal block 2. In this case, the air damper should open at an angle of approximately 60 ?�. If it does not, then emergency control does not work or does not work drive the air damper, or wire Lambda probe closes the "masses." | | 6. If the air damper is opened correctly, connect the green wire to the block 2 to the "weight" of about 2 seconds. Choke should slow slightly parted. If not, check wiring for damage, and if not, replace the control unit with a microprocessor. | | 7. Increase the engine speed to 2000 min-1 for about 1 minute to lambda probe warmed up to operating temperature. | | 8. Connect wire 1 lambda probe to terminal 2. | | 9. When the engine is idling remove the cap from the nozzle of the carburetor. Choke should cover up a little bit slow. If it does not, then the lambda probe is defective and should be replaced. If the lambda probe is clogged with soot, you need to travel on the highway for 20 minutes and then repeat the test. | | 10. Stop the engine. Connect the hose 24 (see. Fig. Air filter engine displacement of 1.1 and 1.3 liters) to the nipple and install the carburetor air filter. |
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Testing the system Ecotronic A plot of the resistance sensor coolant temperature
Check the coolant temperature sensor The coolant temperature sensor is installed in the intake pipe of the engine or a cooling jacket pipe. The sensor signal is fed to the control unit. Failure of the sensor deteriorates engine start at low ambient temperature. | PERFORMANCE ORDER | | 1. Disconnect the temperature sensor. | | 2. Measure the resistance of the sensor. At 20 ?� C it should be 2000-3000 ohms. | | 3. Connect the wires to the sensor to start and warm up the engine. | | 4. Stop the engine and then measure the resistance of the sensor. At 90 ?� C it should be 200-300 ohms. Otherwise, the sensor should be replaced. | | 5. You can make a check of the sensor, removing it from the engine and placed in a vessel with water. Gradually warming water to measure the resistance of the sensor. The dependence of the resistance on the temperature sensor is shown in Fig. |
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Check choke actuator
| PERFORMANCE ORDER | | 1. Warm up the engine, the oil temperature should not be below 60 ?� C. | | 2. Switch off the engine. | | 3. Remove the air filter. | | 4. Check the ease of opening and closing the choke. | | 5. Start the engine and run at idle. | | 6. A few times quickly turn the throttle lever of the first chamber about 1/3 turn between the idle position and the full opening, the lever back to the idle position. Choke thus be quickly rotated in the closing direction and return to its original position. | | 7. If the air damper does not change its position, check the resistance of air damper. To do this, disconnect terminal block with wires from the actuator 32 (see. Fig. Carburettor parts 2Ee) the choke. Ohmmeter to measure the resistance between the contacts of air damper, it should be 0.9-1.7 ohms. Then, check the resistance between each contact and "weight" (ground fault), the ohmmeter should show infinity. | | 8. Stop the engine. Connect the connector with wires to drive the choke. Install the filter. |
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Check throttle potentiometer
Potentiometer 3 (see. Fig. Carburettor parts 2Ee) delivers a signal to the control unit of the throttle position of the first chamber, and the speed of opening and closing the throttle.
| PERFORMANCE ORDER | | 1. To disconnect Pads with wires from the potentiometer 3. | | 2. Measure the resistance of the potentiometer between the outer contacts A and C, it should be 1.4-1.6 ohms. | | 3. Start the engine and run at idle. The hose from the actuator 37 to disconnect the air filter from the filter and close the cap. | | 4. Stop the engine. The throttle should be completely closed. | | 5. Measure the resistance between terminals A and B, it should be 1.4-2.4 ohms. Slowly fully open the throttle resistance when it should gradually decrease. At full throttle resistance should be less than 270 ohms. | | 6. Wear Zhang air filter. Connect the connector with wires to the potentiometer. |
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