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INTAKE AND EXHAUST - On-vehicle Service 15-5 3. If there is a significant deviation from the standard value, check the actuator or the waste gate valve: replace actuator or turbocharger assembly if necessary. WASTE GATE SOLENOID VALVE CHECK OPERATION CHECK A. 2. Using a jumper wire, connect between the solenoid valve terminal and battery terminal. 3. Connecting and disconnecting the jumper wire at the battery negative terminal to apply a negative pressure, check tightness. Jumper wire B nipple condition Normal condition Connected Opened Negative pressure leaks. Closed Negative pressure is held. Disconnected Opened Negative pressure is held. COIL RESISTANCE CHECK AIR BYPASS VALVE CHECK 1. Remove the air bypass valve. 2. Connect the hand vacuum pump to the nipple of the air bypass valve. 3. Apply a negative pressure of approximately 49 kPa, and check that air tightness is maintained. 4. Also check operation of the valve. Standard value: Negative pressure Valve operation Approximately 53 kPa It starts opening Battery B A |