Camshaft Position Sensor JK-PGS006
keyword：
Changsha Jianke
OE No.:
12561211
Car series：
CHEVROLET AVALANCHE 1500 2002-2006 CAMARO 1999-2002 CORVETTE 1999-2004 EXPRESS 1500 2003-2007 SILVERADO 1500 1999-2006 TAHOE 2000-2006 TRAILBLAZER 2003-2004 GMC ENVOY 2003-2004 SAVANA 1500 2003-2007 SIERRA 1500 1999-2006 YUKON 2000-2006 HUMMER H2 2003-20
Camshaft Position Sensor JK-PGS006
Camshaft Position Sensor JK-PGS006
OE No.:
GM12561211
8125612110
SMP
PC273
Car application:
CHEVROLET
AVALANCHE 1500 2002-2006
CAMARO 1999-2002
CORVETTE 1999-2004
EXPRESS 1500 2003-2007
SILVERADO 1500 1999-2006
TAHOE 2000-2006
TRAILBLAZER 2003-2004
GMC
ENVOY 2003-2004
SAVANA 1500 2003-2007
SIERRA 1500 1999-2006
YUKON 2000-2006
HUMMER H2 2003-2007
ISUZU ASCENDER 2003-2004
PONTIAC FIREBIRD 1999-2002
PONTIAC GTO 2004
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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