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Check idle speed and quality of a mix
Carburettor engines (1.6 A) WITHOUT CATALYTIC CONVERTER
| PERFORMANCE ORDER | | 1. Check the ignition timing (see. Subsection 7.7.7). | | 2. Make sure that the candle in a normal state, and gaps in the candlelight of conformity (see. Subsection 2.2.3 and subsection 7.7.2). | | 3. Check the adjustment of the throttle cable (see. Subsection 6.1.7). | | 4. Check the tightness of hoses crankcase ventilation, the lack of them bends and leaks. | | 5. Check the cleanliness of the air filter and air ducts. | | 6. Check the condition of the exhaust system (see. Subsection 2.3.10). | | 7. If signs of abnormal operation of the engine, check the cylinder compressions (see. Subsection 3.1.1.2). | | 8. The quality of the mixture (the content of CO in the exhaust gas) is set at the factory and is not adjustable during operation. However, if the mixture is broken (due to general wear and tear of the engine, or after the repair of the carburettor), the CO content can be restored, which will need a gas analyzer. If no adjustment of the device is performed by a workshop. | | 9. Warm up the engine, having made the trip. |
A warning  Adjust the mixture should be for no more than two minutes after the trip without stopping the engine. If this is not possible, or if the cooling fan is not switched off, then wait until the fan stops. Develop an excess of fuel in the intake manifold, which is 2-3 times bring the engine speed to 2,000-3,000 r / min, and then turn the engine to idle.
| | 10. Make sure that all users are disconnected. If the vehicle is not equipped with a tachometer, connect the tachometer according to the instructions on this device. Identify and note the idle speed, compare with the regulations. |  | 11. Screw idle adjustment located on the rear side of the carburettor, access thereto is provided behind the air filter. Rounding or unscrewing the screw, set the desired idle speed. | | 12. If there is a gas analyzer, then in accordance with the instructions on the device to measure the CO content of the exhaust gases. If necessary, adjust the mixture screw quality, which is located directly below the idle speed screw. | | 13. Turn the screw on the quality of small angles, achieve the desired CO content in the exhaust gases. When screwing the screw (clockwise rotation), the mixture is depleted and CO level decreases when loosening the screw, and the mixture is enriched with CO level rises. | | 14. After the disconnect devices and recheck the idle speed, adjust if necessary. |
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Carburetor engines equipped with catalytic converters | PERFORMANCE ORDER | | 1. Adjust the idle speed. | | 2. Following the Check and adjust the composition of the mixture at idle, which proceed as follows. | | 3. Stop the engine and turn the ignition switch to "off". Disconnect the connector from the exhaust gas sensor (the sensor is screwed into the exhaust manifold) and from the solenoid air valve (mounted on the intake manifold on the left side. | | 4. Remove the cap from the tube sampling of exhaust gases, which is on the left side of the exhaust manifold and connect to the gas detector tube. | | 5. Start the engine. Develop an excess of fuel in the intake manifold, which is 2-3 times bring the engine speed to 2,000-3,000 r / min, and then turn the engine to idle. Make sure the CO content as specified in section 2.1. | | 6. If necessary, adjust the content of CO, which remove from the carburetor thin tool bounding sleeve to provide access to the screw of quality of a mix, which is located directly below the idle speed screw. |  | 7. Turn the screw on the quality of small angles, achieve the desired CO content in the exhaust gases. It is measured in the exhaust gas sampling tube (indicated by arrow). When loosening the screw (clockwise rotation), the mixture is depleted and CO level is reduced, when driving screws mixture is enriched and the CO level rises. | | 8. After the disconnect device, set screw on the quality of new restrictive sleeve. Install the cap on the tube sampling of gases, attach the connectors to the exhaust gas sensor and solenoid valve. | | 9. At the end of the unit, disconnect and recheck the idle speed, adjust if necessary. |
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Engines with fuel injection
| PERFORMANCE ORDER | | 1. Stop the engine and turn the ignition switch to "off". Disconnect the connector from the steering angle sensor throttle valve which is mounted on the side of the throttle body. | | 2. Start the engine. Develop an excess of fuel in the intake manifold, which is 2-3 times bring the engine speed to 2,000-3,000 r / min, and then turn the engine to idle. Make sure that the idle speed meet specified in subsection 2.1. |  | 3. If necessary, adjust the idle speed by turning the adjusting screw, which is located on the right side of the chamber throttle valve (arrow). Rounding or unscrewing the screw until you get the desired idle speed. | | 4. After adjustment, stop the engine and attach the connector to the steering angle sensor throttle. | | 5. The CO content in the exhaust gas can be determined by yourself, if you have enough experience and qualifications, as well as the necessary equipment (including an accurate tachometer and attorney analyzer). However, if it is found necessary to adjust the CO, the probable cause may be a failure of the processor engine management system (ECCS-system). Self-regulation is not subject to the CO content. | | 6. If there is a discrepancy of CO normative, then check if the exhaust gas sensor and the fuel injection system parts, using the self-diagnosis function ECCS-system (see. Subsection 6.2.11). If the self-test failure is detected, the vehicle should be handed over to the care center service for testing. |
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