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1990 Toyota Supra MA70 Fuel System Circuit Diagram
The following circuit diagram shows 1990 Toyota Supra MA70 Fuel System Circuit Diagram. The Fuel system is composed of 3 basic sub systems: Fuel, Air Induction and Electronic Control Systems. The Electronic Control System controls the following functions: Electronic Fuel Injection (EFI); Electronic Spark Advance (ESA); Idle Speed Control (ISC); Diagnosis (detects any malfunctions or abnormalities in the sensor network and lights the "CHECK ENGINE" warning light on the instrument panel); and Fail-safe Function. (click image to enlarge).
The ECU receives signals from various sensors indicating changing engine operating conditions such as: Exhaust oxygen content, Intake air volume, Intake air temperature, Coolant temperature, Engine rpm, Acceleration / deceleration etc. These signals are utilized by the ECU to determine the injection duration necessary for an optimum air-fuel ratio.
Toyota Automatic Transmission A340E Shift Lock System Wiring Diagram
The Toyota Automatic Transmission A340E is applicable for Toyota Cressida, Supra, Pickup Tacoma, T100, Previa, Aristo, Crown Mejesta, 4-Runner, Tundra, etc. The shift lock system here is designed to ensure proper and correct operation of the automatic transmission system. The shift lock system consists of battery, stop light switch, shift lock control switch, shift lock control ECU, shift lock solenoid, key interlock solenoid, ignition switch. The following wiring diagram shows the circuit and schematic of Toyota Automatic Transmission A340E Shift Lock System.
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