9-3 Coupe (9400) L4-2.0L Turbo (B205) (2001)
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Turbo Bypass Control Valve: Testing and Inspection
Checking The Bypass Valve (B235R, B205L/R)
1. Disconnect the vacuum hose from the bypass valve.
2. Connect 30 14 883 Pressure/vacuum pump and create a negative pressure in the valve.
3. Make sure the diaphragm is undamaged. If it is, it will not hold the vacuum.
