Restore proper timing to your engine with this new direct replacement Camshaft Position Sensor the CPS is a key component to your engine's timing and firing system. The Camshaft Position Sensor in most vehicles sends a signal to the Electronic Control Module (ECM) letting the computer know the position of the engine for timing and fuel injection pulses to the engine. A bad or malfunctioning cam sensor will often cause a service engine light error code and or cause a no start condition or rough running due to inaccurate ignition and fuel timing.** Factory Replacement Part that Meets or Exceeds Original Manufacturer Specifications for the Vehicles Listed.1994-1997 Mazda Miata 1.8L 1839CC l4 GAS DOHC Crankshaft Position Sensor