Electronic diesel control Electronic diesel control EDC General The requirements set by customers and legislation in respect of fuel consumption, exhaust emission and noise characteristics etc. on diesel engines have grown over the years and will be even more stringent in the future. The fact that conventional mechanical injection systems have reached their performance limits has made electronically controlled fuel injection systems necessary. Such systems increase engine efficiency, improve driving comfort and lessen the burden on the environ- ment. EDC ( E lectronic D iesel C ontrol) meets these requirements. 6