Camshaft Position Sensor JK-S014
keyword：
Changsha Jianke
OE No.:
237314M505
Car series：
INFINITI FX45 2003-2008 M45 2003-2010 Q45 2002-2006 QX56 2004-2010 NISSAN ALMERA 2001-2005 ARMADA 2005-2015 NV2500 2012-2015 NV3500 2012-2015 PATHFINDER 2004-2012 SENTRA 2000-2006 TITAN 2004-2015
Camshaft Position Sensor JK-S014
Camshaft Position Sensor JK-S014
OE No.:
NISSAN
237314M505
237314M50B
237314M405
237314M500
237314M505
237314M506
237314M50B
237315M000
237315M001
237315M005
237315M006
SMP
PC462
PC459
Car application:
INFINITI
FX45 2003-2008
M45 2003-2010
Q45 2002-2006
QX56 2004-2010
NISSAN
ALMERA 2001-2005
ARMADA 2005-2015
NV2500 2012-2015
NV3500 2012-2015
PATHFINDER 2004-2012
SENTRA 2000-2006
TITAN 2004-2015
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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