![]() It is especially needed for Sequential fuel injection (SEFI) to function correctly. This information is used by the EEC (computer) to synchronise fuel injection to engine firing sequence & thus obtain more efficient fuel economy. It sends an electrical signal under engine rotation (specifically from the camshaft) which informs the Engine computer when #1 cylinder is at TDC on the firing stroke. The camshaft synchroniser is a device very similar in appearance to a distributer, from an earlier vintage.
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June 2023
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