Sequence scheduling control for a fuel injected engine

An electronic control system for an internal combustion engine;

• said electronic control system comprising a timing determination means for determining timing sequence data for use in controlling operation of engine components, said timing determination means adapted to output timing sequence data to a sequence scheduler means, said sequence scheduler means adapted to output driver control signals to at least one driver circuit, which said driver circuit outputs control signals to said engine components whereby said engine components are controlled by said electronic control system, said sequence scheduler adapted to store timing sequence data as either prevailing timing sequence data or update timing sequence data, said prevailing timing sequence data for use in generating said driver control signals and said update timing sequence data for use in updating said prevailing timing sequence data;
• wherein said sequence scheduler schedules an update of said prevailing timing sequence data with said update timing sequence data having regard to the relative timings of said prevailing timings data and said update timings data.