About the K-Jetronic Injection System
This rather extensive article covers all aspects of the K-jetronic fuel injection systems found in E21's, such as the 318i, 320i and the 323i. Reading through these pages will help you understand how this system works, what it does, and it's individual parts.
Since their introduction, the Jetronic fuel injection systems have proved themselves millions of times over under the harsh conditions of everyday driving. This success is a result of the advantages which fuel injection can offer when considering today's demands for economy, performance, and cleaner exhausts. The K-Jetronic is a mechanical system in which the fuel is continuously metered in accordance with the amount of air drawn in by the engine. Using the Lambda sensor together with additional equipment for the Lambda closed-loop control facility, the K-Jetronic can already comply today with the exhaust-gas regulations of tomorrow. The construction and principle of operation of the K-Jetronic is dealt with in this Technical Instruction manual.
Edited by Bob Isaac
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Lambda closed-loop control
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