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1. The considered system provides supply of the cleared air in injection injectors in the course of functioning of the engine. Supply of additional air allows to make impoverishment of air and fuel mix and to provide its fuller combustion during acceleration.
2. Start the engine, accelerate it to 3000 rpm and wait for operation of the fan of the cooling system. Dump engine turns to the single.
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3. Disconnect a hose of air supply of the FIA valve from an inlet sleeve and connect the vacuum gage to a hose. |
4. Manually open a butterfly valve, then completely close it. Depth of depression has to change with change of turns of the engine.
5. In the absence of variations of depth of depression check correctness of laying and a condition of vacuum hoses. If hoses as it should be, replace the FIA valve. |