- the atomized fuel stream may have an irregular shape;
- injector nozzle does not close when switch motor causes engine flooding on start up;
- the injector nozzle filter may be clogged, delivering fuel in smaller portions than required;
- the gasket may be damaged (breathable).
2. For inspection, the injector must be removed.
3. Check the condition of the rubber gasket and if it has signs of cracks or compression, it must be replaced with a new one.
If the gasket is damaged, it is necessary to check the other injector gaskets, as they may be in the same condition.
4. A special tool is needed to thoroughly check the injector. However, a basic check can be performed using the following description.
5. Plug the nozzle hole in the head and hold the nozzle in a suitable glass cylinder. Start the engine and let it idle on three cylinders. Inspect the shape of the atomized fuel flow. The atomized fuel should have the shape of a symmetrical cone. If this is not the case, the nozzle must be replaced, as the vibrator rod is damaged or the spring is broken. Turn off the engine and wait 15 seconds. There should be no fuel leaking or leaking from the atomizer nozzle. If fuel leaks from the nozzle, the nozzle must be replaced with a new one, as leaking fuel can cause flooding of the engine and make it difficult to start the engine.
[The original can be viewed on the portal: vwmanual.ru]
6. The nozzle must not be disassembled for cleaning purposes. If the nozzle is removed from the branch pipe, a new one must be installed in its place, and the connection must be tightened to a certain torque.
7. The gasket installed before installing the injector must be lubricated with gasoline.
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