Skoda OCTAVIA MK1 - Test Variable Intake Manifold Changeover Valve -N156

– If necessary replace vacuum unit.
If the vacuum unit does not connect, test valve
-N156- for continuity as follows:
–
Connect one contact of the valve°with the
connection line and alligator clip from
-V.A.G 1594 A- to the engine mass.
–
Lay a second contact of the valve with remote
control - V.A.G 1348/3A-, adapter cable
-V.A.G 1348/3-2- and connection line to
positive terminal.
– Activate remote control -V.A.G 1348/3A-.
–
Test valve for continuity (disconnect vacuum
lines and blow out).
–
If necessary replace valve for variable intake
manifold changeover.
–
If no fault was detected during all the previous
tests, check the vacuum system for leaks.
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