Delphi Camshaft Position Sensor - OE Engine Management SS12355-12B1

This Delphi Camshaft Position Sensor (SS12355-12B1) is supplied in OE-matching quality and is suitable for selected Citroen and Peugeot vehicles.

The camshaft, driven by a timing belt or chain by the crankshaft, rotating with half of the crankshaft’s speed, opens and closes the valves. Installed nearby, the camshaft sensor is responsible for measuring the position of the camshaft. This signal, in conjunction with the crankshaft position, is used to determine which cylinder is currently in its power stroke. The ECU needs this signal to determine when to inject fuel and to operate the spark plug.

In the case of a camshaft sensor failure, drivers may experience delayed starting. In addition, if the engine is equipped with variable valve timing, it will be disturbed as well, as the camshaft sensor signal is used to monitor this function. The engine will keep running, but with reduced power and performance.