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Removing and installing combination valve > < Test secondary air pump

Octavia Mk1

Testing secondary air injection valve N112
Testing secondary air injection valve -N112-
For engines with engine code AQY and AZH ? 07.2000
Test conditions
l  Coolant temperature 5...33°C
l  Secondary air pump and relay o.k.
l  Vacuum lines are not blocked
Test sequence
   
–  Detach vacuum hose - top part -arrow- from secondary air inlet valve -1-.
–  Start engine and run in idle.
If the secondary air pump starts, vacuum must be felt at the secondary air inlet valve support.
If no vacuum can be felt:
–  Switch off engine.
–  Test actuation of secondary air injection valve → 2.0 ltr./85 kW Engine, Fuel Injection and Ignition System → Rep. Gr.01.
  N26-0221

Removing and installing combination valve > < Test secondary air pump