Renault Coupes/Sedans/Wagons 1975-1985 Repair Guide

System Description


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Fig. Fig. 1 Fig. 14 Schematic of the Throttle Body Injection (TBI) system

All Alliance and Encore models, except those built for sale in California, use this system. The throttle body system injects fuel into a throttle body (visually resembling a carburetor). Fuel is metered through a throttle blade by an electronically controlled fuel injector. The Electronic Control Unit (ECU controls injectors through input sent by sensors that detect exhaust gas oxygen content, coolant temperature, manifold pressure, crankshaft position and throttle position.