skoda Workshop Repair Guides

Skoda Workshop Service and Repair Manuals

ABOUT US
Testing Intake manifold flap motor V157 > < Testing Intake manifold temperature sender G72

Fabia Mk1

Testing Engine speed senderG28
Testing Engine speed sender -G28-
The Engine speed sender -G28- is a speed and reference marking sender. If it fails the engine stops.
Special tools and workshop equipment required
t  Hand multimeter (e.g. -V.A.G 1526 A-)
t  Adapter cable set (e.g. -V.A.G 1594 A-)
t  Test box -V.A.G 1598/31-
Test sequence
–  Switch off the ignition.
   
–  Remove engine cover.
   To do so pull the front and rear engine cover upwards with a sudden motion.
–  Disconnect the plug connection of the Engine speed sender -G28-.
  S10-0115
–  Connect the handheld multimeter to measure the resistance on contacts 1+2 of plug -2-.
   Specified value: 1.1…1.6 kΩ
If the specified value is not reached:
–  Replace the Engine speed sender -G28- → 1.9/47 SDI Engine, Mechanics; Rep. Gr. 13.
If the specified value is reached:
–  Connect the test box -V.A.G 1598/31 - to the wiring loom on the engine control unit → Chapter.
  S23-0102
–  Check the following wires for interruption or short-circuit to earth or positive:
  S23-0102
Connector -1-, contactTest box -V.A.G 1598/31-, bush 
1102 
2110
386

–  Also test the wires for short-circuits.
If the lines are not found to be faulty:
–  Replace the Diesel direct injection system control unit -J248- → Chapter.
   

Testing Intake manifold flap motor V157 > < Testing Intake manifold temperature sender G72