Spark Control System: Supra

Connect vacuum gauge to distributor sub-diaphragm hose. With cold engine idling, vacuum reading should be high. With warm engine idling, vacuum should be low. Move vacuum gauge to the main diaphragm of distributor. Low vacuum should be present at idle; high vacuum at 2000 RPM.

Fig 1: 1977 Spark Control System Test (Federal 2F Engine)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: 1977 Spark Control System Test (Federal 2F Engine - Cont.)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 3: 1977 Spark Control System Test (Federal 2F Engine)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 4: 1977 Spark Control System Test (High Altitude 2F Engine)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 5: 1977 Spark Control System Test (2F Engine)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 6: 1977 Spark Control System Test (3K-C Engine)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 7: 1979 Celica, Corona & Pickup Spark Control System

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 8: 1979 Corolla 1200 Spark Control System

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 9: 1979 Corolla 1600 Spark Control System

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002