Consequences of Camshaft & Crankshaft Sensor Failures
The crankshaft sensor delivers the main input signal for the ECU. Unlike many other sensors, where, in case of a failure, the ECU can calculate a default value and keep the engine running, this is not the case for the signal of the engine speed sensor. Without this signal, the ECU cannot keep the engine running, resulting in a car breakdown.
In the case of a camshaft sensor failure, the consequences are less severe, but 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.
Sensors don’t have dedicated exchange intervals. Water in the connector or sensor, broken wires and age are factors that may contribute to the failure of engine speed and position sensors. To prevent these parts from becoming faulty, it is highly advisable to replace them during the lifetime of your vehicle.