Bosch Reference Mark Sensor

The Bosch Reference Mark Sensor, also sold as a camshaft position sensor or cam sensor, is a replacement engine management sensor. It monitors rotational position and speed so the engine control unit can time fuel injection and ignition correctly. Bosch develops these sensors as an original equipment supplier.

Key Features:

• Reports camshaft position to the engine computer for accurate fuel injection and ignition timing
• Helps support smooth starting, steady idle, throttle response and fuel efficiency
• Made to Bosch original equipment standards for reliable signal output and fit
• Designed as a direct-fit replacement for the original sensor
• Also known as a reference mark sensor, RPM sensor or speed sensor, depending on the application

A worn or failing sensor can cause rough running, stalling, poor acceleration, hard starting or a no-start condition. Replacing it with a Bosch sensor helps restore proper engine timing and performance.