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Home >> Volkswagen >> 2004 >> GTI VR6 >> Repair and Diagnosis >> External Pages >> Different car >> Section 102 (1.9L - Fuel Injection Glow Plug, Engine Code: ALH (A4 Platform)) >> 01 On Board Diagnostic (OBD) >> Function 03: Output Diagnostic Test Mode (DTM) >> Output Diagnostic Test Mode, performing >> Activating EGR Vacuum Regulator Solenoid valve N18

Activating EGR Vacuum Regulator Solenoid valve N18

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Indicated on display:

Output Diagnostic Test Mode ->
Exhaust Gas Regulator Valve N18

Valve must click.

NOTE:
  • It is difficult to hear the valve click due to engine noise. Determine valve operation by feel (touch).

Valve does not click:

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