Where is the Camshaft Position Sensor Installed?
2 Answers
The camshaft position sensor is installed at the front end of the camshaft, facing the position of the intake and exhaust camshaft front ends. The camshaft phase sensor must face the signal wheel to collect signals. The camshaft position sensor is a sensing device, also known as a synchronization signal sensor, and serves as a cylinder identification and positioning device that inputs camshaft position signals to the ECU. Its function is to collect the camshaft's angular movement signals and input them into the electronic control unit to determine the ignition timing and fuel injection timing. The camshaft position sensor is also referred to as the cylinder identification sensor. To distinguish it from the crankshaft position sensor, the camshaft position sensor is generally denoted as CIS.
I've always enjoyed studying the locations of these parts with fellow car enthusiasts. That little thing called the camshaft position sensor is usually hidden either at the front or rear of the engine. If you pop the hood and follow along the camshaft cover or timing belt area, chances are you'll spot it. Different automakers place it in different locations – some mount it near the camshaft sprocket on the cylinder head, while others install it on the engine front cover. When searching, look for a wiring harness connection, and that small square box is probably it. Although the position varies, its most crucial function is telling the ECU the camshaft's position, as the engine control module relies on this signal to manage fuel injection and ignition timing.
