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BMW 3 series E30Since 1983-1994 of releaseRepair and car operation |
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BMW E30 + 1. The maintenance instruction + 2. Maintenance service + 3. The engine + 4. Cooling system + 5. Heating and ventilation - 6. Fuel system 6.2. Specifications 6.3. Check of system of injection 6.4. A measuring instrument of a stream of air 6.5. A throttle branch pipe 6.6. A regulator of pressure of fuel 6.7. An atomizer of start-up of the cold engine and a thermotimer 6.8. Check and replacement of atomizers 6.9. The air proof-reader of idling 6.10. An order декомпрессии fuel system 6.11. Check of pressure of fuel 6.12. The fuel pump, the pump of pumping and the gauge of level of fuel in a tank 6.13. Gasoline pipe lines and the union 6.14. A fuel tank 6.15. The air filter 6.16. A cable of a drive throttle заслонки 6.17. The carburettor + 7. An exhaust system + 8. Transmissions + 9. Coupling + 10. Brake system + 11. A running gear + 12. A body + 13. An electric equipment + 14. A good advice |
6.9. The air proof-reader of idling
The air proof-reader provides stabilisation of turns of idling in limits ±200 rpm at variable loading of the engine idling. The proof-reader represents the solenoidal valve opening перепускной the channel for air, arriving in задроссельное space at falling of turns below 750 rpm. When turns exceed 950 rpm the valve is closed also turns decrease. In system of injection L-Jetronic the separate block of management is provided by the proof-reader of idling who is located under the forward panel of salon. On the proof-reader of idling there is an adjusting screw. In early system Motronic also are provided the separate block of management by the proof-reader of idling who is located under the forward panel of salon, and the adjusting screw. In late system Motronic work of the proof-reader of idling the processor block operates, manual adjustment is not provided. Before check the engine should be heated-up, onboard consumers are disconnected, turn gauges заслонки and the oxygen gauge should be serviceable, leaks in an exhaust system and vacuum hoses should be absent. Connect a tachometre. At engine work from outside the proof-reader the buzzing sound should be listened. System of injection L-Jetronic The block of management of the proof-reader of idling (a kind at the removed box for trifles)
At a detachment from the proof-reader of a socket idling turns should increase to 2000 rpm.
Check up valve operation, having submitted on it pressure from the battery. After removal of pressure the valve should open. If results at least one of tests unsatisfactory replace the valve of the proof-reader. If results of tests satisfactory check up a current consumed by the proof-reader.
The prevention If the current is not registered, hand over the electronic block of idling in car-care centre for check and repair. The prevention Adjustment
System Motronic The prevention The screw for adjustment of the proof-reader of idling in the metal case The screw for adjustment of the proof-reader of idling in the plastic case
At a detachment from the proof-reader of a socket idling turns should increase to 2000 rpm. Otherwise execute the following. On the 2-wire proof-reader check up valve operation, having submitted on it pressure from the battery. After removal of pressure the valve should open. Stop the engine and check up resistance of a winding of the valve which should be 9–10 Ohm.
If results at least one of tests unsatisfactory replace the valve of the proof-reader. If results of tests satisfactory check up a current consumed by the 2-wire proof-reader or pressure on the 3-wire proof-reader. On 2-wire the proof-reader connect the ampermeter. Idling the current should be 0,4–0,5 And, if necessary adjust a current. The prevention If the current is not registered, hand over the electronic block of idling in car-care centre for check and repair.
If pressure is not registered, hand over the electronic block of idling (or the processor block of the engine on late models) in car-care centre for check and repair. Adjustment (only on early models)
Replacement
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