Camshaft Position Sensor JK-S004
keyword：
Changsha Jianke
OE No.:
058905161B
Car series：
AUDI A3 1996/09-2003/05 A4 1994/11-2001/09 A6 1994/06- 1997/10 A8 1994/03-2002/12 AUDI TT 1998/10-2006/06 GEELY GEELY BL Coupe 2005/01- SKODA OCTAVIA 1996/09-2010/12 SUPERB 2001/12-2008/03 VOLKSWAGEN BEETLE 1998/01-2010/09 BORA 1998/10-2005/09 GOLF
Camshaft Position Sensor JK-S004
Camshaft Position Sensor JK-S004
OE No.: AUDI 058905161B
BOSCH 0232101024
Car application:
AUDI
A3 1996/09-2003/05
A4 1994/11-2001/09
A6 1994/06- 1997/10
A8 1994/03-2002/12
AUDI TT 1998/10-2006/06
GEELY
GEELY BL Coupe 2005/01-
SKODA
OCTAVIA 1996/09-2010/12
SUPERB 2001/12-2008/03
VOLKSWAGEN
BEETLE 1998/01-2010/09
BORA 1998/10-2005/09
GOLF IV 1997/08-2005/06
PASSAT 1996/08-2001/12
POLO 2001/10-2012/01
SHARAN 1995/05-2010/03
TOUAREG 2002/10-2010/05
Camshaft Position Sensor Core Function:
The Camshaft Position Sensor (CMP sensor) is a critical electronic component in modern internal combustion engines. Its primary function is to monitor the rotational position and speed of the camshaft(s) and relay this real-time data to the Engine Control Module (ECM) or Powertrain Control Module (PCM).
2. Primary Purpose & Role in Engine Management:
The ECM uses the signal from the CMP sensor, in conjunction with data from the Crankshaft Position Sensor (CKP sensor), to achieve precise engine management. Specifically, it enables:
Fuel Injection Timing: Determines which cylinder is in its intake stroke to trigger sequential fuel injection for optimal efficiency and power.
Ignition Timing (Spark Timing): Precisely controls when the spark plug fires, especially in engines with Direct Ignition Systems (one coil per plug).
Variable Valve Timing (VVT) Control: Acts as a feedback sensor for VVT systems, allowing the ECM to adjust camshaft timing for performance, economy, and emissions.
Cylinder Identification: Helps the ECM identify the position of cylinder #1 for correct firing order sequencing.
In essence, it tells the engine computer "where" the camshaft is, so the computer knows "when" to inject fuel and, in gasoline engines, "when" to fire the spark for each specific cylinder.
3. Common Types & Operating Principles:
There are three main types of camshaft position sensors, categorized by their technology:
Magnetic (Variable Reluctance) Type: Uses a permanent magnet and a coil. As a reluctor wheel (notched ring) on the camshaft passes by, it changes the magnetic field, inducing an analog AC voltage signal. This type is passive (does not require an external power source) and is known for its durability.
Hall-Effect Type: Uses a Hall-effect semiconductor chip. When a shutter ring or vane on the camshaft interrupts a magnetic field, the sensor outputs a precise digital square wave signal (on/off). This type requires an external power supply and provides a more accurate signal, especially at low speeds.
Magneto-Resistive Type: A more advanced variation that can detect both direction and very fine rotational changes, used in some newer VVT systems.
4. Typical Location:
The sensor is mounted directly adjacent to a camshaft, often at the cylinder head's front or rear, near the timing cover. It is positioned with a small air gap (clearance) separating it from a reluctor wheel, tone ring, or a single notch/magnet on the camshaft itself.
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Changsha Jianke Electronics Co., Ltd
Phone: 86-731-88552129 (Personnel)
Phone: 86-731-88081666 (Sales)
Email: sales@jkaec.com
Address: No. 10, Aviation Road, Wangcheng Economic and Technological Development Zone, Changsha City
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