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Pressure Relief Valve

Check air pump discharge pressure just as air starts to come out from relief valve discharge hole. Pressure should be 0.2- 0.35 kg/sq. cm (2.8-5.0 psi).

Fig 1: Air Injection System Schematic (With Air Control & Anti-Afterburn Valve)
G09309538Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Air Injection System Schematic (M Engines)
G09309539Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 3: Air Injection System Schematic (F Engine)
G09309540Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002