Renix

Renix (Renix Electronique) was a joint venture by Renault and Bendix that designed and manufactured automobile electronic ignitions, fuel injection systems, electronic automatic transmission controls, and various engine sensors. Major applications included various Renault and Volvo vehicles. The name became synonymous in the U.S. with the computer and fuel injection system used on the AMC/Jeep 2.5 L I4 and 4.0 L I6 engines.

The term Renix also has a number of applications. In certain carburetor equipped Renault and Volvo models, it provides an electronic ignition system, consisting of an engine control unit (ECU) to replace the job of contact breaker points in the distributor. The system uses an angle sensor and a number of fuel sensors to provide a maintenance-free ignition system. The ECU is sealed and cannot be serviced, and the EPROM cannot be re-programmed.

Later, the name was synonymous with a form of fuel injection. In such an application, it consisted of an ECU and a number of sensors. It was first seen in engines produced by Renault (Renault 21, 25, and Espace) in 2.0 L (122 cu in) and 2.2 L (134 cu in) capacities. It is better known in America for its application in the AMC 4.0 L displacing 3,960 cc (242 cu in) straight-6 engines. Production began by American Motors (AMC) with the 1987 Jeep Cherokee (XJ) models. It was preceded by the AMC Computerized Engine Control, and followed by Chrysler's Mopar MPI system.

Renix Electronique S.A., was established in 1981 as a joint venture by Renault with 51% interest and Bendix with 49% that was headquartered in Toulouse. Renix Corporation of America was the North American subsidiary of Renix Electronique to provide sales, logistics, engineering, and quality support to American Motors.

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