TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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TC/Turbocharger System 2JZ-GTE20 / 23
p.021
Intake Air Control Valve — MK4 Supra Turbocharger System 2JZ-GTE, page 20
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EG-159 ENGINE – TURBOCHARGER SYSTEM (2JZ–GTE) 5. INSPECT EXHAUST BYPASS VALVE OPERATION (a) Plug one side of the actuator air hose end. (b) Using SST, apply approx. 98 kPa (1.00 kgf/cm2, 14.2 psi) of pressure to the actuator. SST 09992–00241 (c) Move the actuator push rod, and check that the exhaust bypass valve is open. If operation is not as specified, replace the No.2 turbocharger assembly. NOTICE: Never apply more than 187 kPa (1.91 kgf/cm2, 27.2 psi) of pressure to the actuator. (d) Remove the plug from the actuator air hose end. Intake Air Control Valve INSPECT CONTROL VALVE OPERATION (a) Using SST, apply approx. 49 kPa (0.50 kgf/cm2, 7.1 psi) of pressure to the actuator. SST 09992–00241 (b) Move the actuator push rod, and check that the control valve is open. If operation is not as specified, replace the control valve assembly. Exhaust Gas Control Valve INSPECT CONTROL VALVE FOR DAMAGE Move the actuator push rod and control valve, and check the control valve for damage. If the valve is damaged, replace the control valve assembly. Air Bypass Valve INSPECT AIR BYPASS VALVE OPERATION (a) Check that air does not flow from port A to B. (b) Apply vacuum to the actuator. (c) Check that air flows from port A to B. If operation is not as specified, replace the valve. P11350 Plug 98 kPa Move SST Open P11287 Move Open 49 kPa SST P13306 Move Move P12028 A B Air P12029 Vacuum A B Air