Digifant injection and ignition system
Checking intake air preheating
Special tools, testers and auxiliary items
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◆ Hand vacuum pump V.A.G 1390
Test conditions
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● Regulating flap vacuum unit not leaking
Checking regulating flap
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‒ Remove air cleaner upper part and filter element.
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‒ Connect hand vacuum pump V.A.G 1390 to the vacuum pipe to vacuum unit.
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