Found 52 PDF associated with tag : Sensor
When the Anti-lock Brake System (ABS) was first introduced to the automobile, many technicians were very skeptical. They were concerned about incorporating this technology into the automotive braking system. For the most part, the systems have proven to be very reliable. There have been a few exceptions, such as a system alternately self-applying the brakes, resulting in the vehicle skidding out of control. In addition, there have been some system bleeding challenges. Most of the problems have been limited to defective sensors, wiring related issues or inadequate grounding. Making an accurate diagnosis in a timely manner can be a challenge. Often, expensive components are replaced and it is later determined that the malfunction was due to a connection-related problem or sensor contamination, which affects the air gap spacing. One lesson I have learned is to always research the symptoms prior to diagnosing the problem and replacing components. If you are in a hurry and make a bad diagnosis, some of the expensive components can be hard to digest. The first step in the diagnostic procedure should involve researching the system for factory solutions. You will be amazed how many factory service bulletins are available for that illuminated ABS lamp, stored trouble code, or brake performance condition. Let’s consider some ABS system performance conditions and factory solutions
POSITION SENSOR. The camshaft position sensor con- sists of a signal plate and pick-up ... camshaft position sensor is shown on the left, while a crankshaft position ...Both the crankshaft position sensor (“NE” sensor) and the camshaft position sensor (“G” sensor) play a key role in helping the ECM manage fuel delivery and ignition spark. Typically, both sensors are pickup coil (variable reluctance) type sensors. This type of sensor consists of a permanent magnet, yoke and coil and is mounted in close proximity to a toothed gear (also called a rotor). As the component, such as the crankshaft or camshaft, rotates, the component’s rotor teeth move past the sensor, inducing an AC voltage pulse in the coil, with each tooth generating a pulse. As the gear rotates faster, more pulses are produced.
OFord Camshaft Positioning Tools • OTC is now offering a complete line of camshaft positioning tools for the Ford vehicle family. • Ensure proper cam timimg when you replace a head gasket, replace a timing belt or chain, or complete any valve train repair. • Service the following engines: 4.6L/5.4L/6.8L Modular; 3.8L V6; 4.2L V6/5.0L V8; 3.0L Taurus, Windstar; 4.0L V6 Aerostar, Ranger, and Explorer; 2.0L DOHC Zetec. (For exact application, see enclosed chart.)Econoline. 4.2L V6. Cam Sensor Synch ...Ford , Camshaft Position Sensor
THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 08-001-08, DATED JANUARY 26, 2008. THIS IS A COMPLETE REVISION AND NO ASTERISKS HAVE BEEN USED TO HIGHLIGHT REVISIONS. SUBJECT: Long Engine Crank Time And/Or MIL Illumination Due To DTC P0340 / P0344 OVERVIEW: This bulletin involves the reprogramming of the PCM and the possible replacement of the engine camshaft sensor. MODELS: 2008 (JK) Wrangler NOTE: This bulletin applies to vehicles equipped with a 3.8L engine (sales code EGT) and built prior to February 13, 2008 (MDH 0213XX). SYMPTOM/CONDITION: The customer may experience one of the following conditions: 1). A Malfunction Indicator Lamp (MIL) illumination when starting due to one of the following DTCs: a). P0340 - Camshaft Position Sensor Circuit - Bank 1 Sensor 1 b). P0344 - Camshaft Position Sensor Intermittent - Bank 1 Sensor 1 2). Long engine crank time. 3). Two engine start attempts prior to engine starting. 4). Due to the “TIP Start Feature” on automatic transmission equipped vehicles, once the ignition key / switch has been released from the “START” position, the starter may stay engaged for up to 10 seconds while the engine attempts to start.
CIRCUIT DESCRIPTION The Camshaft Position (CMP) sensor, like the Crankshaft Position (CKP) sensor, consists of a magnet and an iron core wrapped in copper wire. The camshaft has 3 teeth and the CMP sensor is installed so that it can detect these teeth passing by. When the camshaft rotates and the teeth pass by the CMP sensor, the magnet on the CMP sensor creates a magnetic field and voltage is generated in the copper wire. When the crankshaft makes two rotation, voltage will be generated in the CMP sensor 3 times. The CKP sensor is roughly the same. When the crankshaft makes one rotation, its 34 teeth pass by the CKP sensor and voltage is generated 34 times. The camshaft rotates at half the speed of the crankshaft. Therefore, the CMP sensor generates voltage 3 times in the time the crankshaft takes to make 2 rotations. The ECM detects generation of these voltages to locate the camshaft position, which are used to indicate the cylinder.
Features ・Injectors that diameter of delivery pipe connection portion is φ11 like HKS 1000cc (1402-RA002) and 800cc (14002-AM001) can be installed. ・HKS Fuel Regulator can be installed. ・With HKS Fuel Regulator, fuel pressure will be adjustable. ・Purple alumite colored. ■Point of specification change ・Due to different positions of delivery pipe connection, when 800cc injector is installed, the delivery pipe is located closer to the engine (than 1000cc injector). This will be adjusted with insulator included in the kit. (1000cc uses stock insulator). Because of this change, the old delivery pipe contacts with camshaft position sensor. To prevent the problem, the new kit has shorter delivery pipe. Camshaft position sensor ●Old model (14007-AM004) ■Specification Length L=328 ・Applicable for φ11 connection injectors Features ・PT1/8 fuel pressure sensor can be installed. ●Delivery pipe ●Adapter ●UNION AN6/M16 Set ●Copper gasket Kit Parts ●Spacer ●Insulator injector ●Plug ●Others ・Injector, hose, fitting, regulator, fuel pressure sensor are Remarks not included in the kit. Please purchase separately.
M62 Camshaft Position Sensor (CPS) replacement as performed on a 1998 BMW 540iA Sport by kowached @ Roadfly REQUIRED TOOLS: 5mm Hex (Allen) Key, 6mm Nutdriver, and a 10mm Nutdriver. A Peake R5/FCX scan tool is also nice to have to reset the “Check Engine” light. REQUIRED PARTS: A new CPS (12-14-1-742-185) and O-ring (12-14-1-748-398). 1. Remove the top of the air filter box by disengaging the 4 perimeter clips around the air box as well as the 2 clips that connect the air intake tube to the engine. Disconnect the electrical connection to the air box temp sensor and the Mass Air Flow (MAF) sensor. Pop out the tube that leads to the Idle Control Valve and use a 6mm nut-driver to unscrew the hose clamp downstream from the MAF: There’s the Camshaft Position Sensor (below): 2. Remove the air intake silencer with a 10mm nut-driver: 3. Unscrew the 5mm Hex (Allen) Key that holds the CPS in place. Remove the engine cover and disconnect the electrical connector that goes from the CPS to the top of the engine. Yes, the connector end can and will slide behind the oil dipstick, but just barely: 4. Install the new CPS being sure to lightly oil the O-ring as you would the oil filter O-ring so that it seals properly. Be very careful to make sure that all intake hose connections are tight, any air leak between the MAF and the engine can cause problems. ** Note that if you would like more growl in the 3000+ RPM range you can easily replace the air silencer box with a 1 inch PVC cap (not plug, cap only) and a hose clamp:
In this months topic we will be looking miscellaneous sensors and actuators found on the motor vehicle. The waveforms that will be covered are: ● Cranking current Cranking Current The purpose of this particular waveform is two fold: to measure the amperage required to crank the engine and to evaluate the relative compressions The amperage required to crank the engine will largely depend on many factors, these include: the capacity of the engine, the number of cylinders, the viscosity of the oil, the condition of the starter motor, the condition of the starter's wiring circuit and the compressions in the cylinders. The current for a typical 4 cylinder petrol engine is in the region of 80 - 180 amps