volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

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Checking idling speed boost valve > < Checking commencement of injection valve

Polo Mk3

Diesel injection and glow plug system
Servicing fuel injection system
Checking full throttle stop valve

Special tools, testers and auxiliary items

  • ◆ Hand multimeter V.A.G 1526 or multimeter V.A.G 1715
  • ◆ Adapter set V.A.G 1594
 
N23-0038

Test sequence

  • ‒ Separate multi-pin connector.
  • ‒ → Unclip connector -1- from retainer.
 
N23-0134
  • ‒ → Measure resistance of valve -2- at contact 7 of multi-pin connector -3- and vehicle earth.
         Specification 14...17ω(at approx. 20°C)

If the specification is not attained:

  • ‒ Renew injection pump =>Page 23-14 .

Checking idling speed boost valve > < Checking commencement of injection valve