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Checking metering adjuster N146 > < Test sequence

Leon Mk2

Checking modulating piston movement senderG149.
Checking modulating piston movement sender -G149-.
   
–  Separate 10-pin connector -arrow- for modulating piston movement sender (connection to injection pump metering control).
  E10-0001
–  Measure resistance between connector contacts 1 + 2 and 2 + 3. Specification: 5.0 ... 7.0 Ω
If the specification is not attained:
–  Renew injection pump → Chapter.
If specification attained:
–  Remove wiper arms and cowl panel: → Electrical system; Rep. Gr.92
  A23-0027
–  Connect test box -V.A.G 1598/22- to control unit wiring harness.
  N24-0709
–  Check wiring for open circuit between test box and connector according to current flow diagram. Contact 1+ socket 56 Contact 2+ socket 57 Contact 3+ socket 64 Wire resistance: max. 1.5 Ω
–  Additionally check wires for short to one another, to vehicle earth and to battery positive. Specification: ∞Ω
If no wiring fault is detected:
–  Renew engine control unit → Chapter.
  A23-0028

Checking metering adjuster N146 > < Test sequence