Nissan Silvia / Datsun 200SX Overview
Nissan Silvia (several generations marketed under the name Silvia 200SX) is a compact sports car rear wheel made by Nissan Motors, Japan. The first generation Silvia is only made in small quantities in a short time in the 1960s. In the mid-1970s until 2002, Silvia mass produced.
From 1964 to 1968 – the first generation (body CSP311).
From 1975 to 1979 – the second generation (body S10).
From 1979 to 1983 – the third generation (body S110).
From 1983 to 1988 – the fourth generation (body S12).
From 1988 to 1994 – the fifth generation (body S13).
From 1994 to 2000 – the sixth generation (body S14).
From 1999 to 2002 – the seventh generation (body S15).
1983 Nissan Silvia / Datsun 200SX Control Unit and Electronic Fuel Injection EFI Wiring Harness
Nissan Silvia / Datsun 200SX Control Unit is connected to the EFI harness by means of a multi connector, and the EFI harness is connected to other sensors. The essential role of the control unit is to generate a pulse. Upon receiving an electrical signal from each sensor, the control unit generates a pulse whose duration (injector open valve time period) is controlled to provide an optimum quantity of fuel according to the engine characteristics. The control unit consists of mainly of three integrated circuits board. This construction provides superior control unit reliability.
One wiring harness is used to connect lines between the control unit and related major units. The 35-pin connector of the EFI harness is connected to the control unit at the left dash side, and runs to the engine compartment. The harness runs to various units; the air flow meter throttle valve switch, air regulator, cylinder head temperature sensor, exhaust gas sensor, injector, etc. Battery supplies power to injector and control unit through fusible link designed especially for EFI.
The following schematic depicts the 1983 Nissan Silvia / Datsun 200SX Control Unit and Electronic Fuel Injection EFI Wiring Harness