Sensors of engine operation parameters – under the influence of vibration. The sensors for the position of the shaft and camshaft are extremely important for correct engine operation. Information from these two elements shows the speed of the shaft and shaft, as well as the position in which the piston of the cylinder is located. On this basis, the engine computer is able to effectively control the injector system and ignition.
Both sensors show considerable susceptibility to vibrations coming from the working engine. As a result of their operation, the fasteners and other damages may loosen. In most cases, failures occur with a significant course and are equivalent to the need to replace the entire sensor. The cost of purchase is usually about 50-100 pounds.
ABS sensors – sensitive to mechanical damage
Failures of active safety systems, such as ABS, ASR or ESP, are often associated with sensor faults. They are responsible for measuring the rotational speed of the wheel, which is the basis for the effective operation of these systems. These sensors are located in places exposed and exposed to mechanical damage. Sometimes failures are easy to remove because they result from the interruption of the electrical circuit. In other cases, however, it is necessary to replace the entire component, which costs about 50-100 pounds.
Turbine sensor. Symptoms, failures and repair methods
A turbocharger failure will not always require regeneration or replacement of the entire component. In many cases, a damaged or soiled sensor provides information about the compressed air pressure value.
Turbochargers are driven by a momentum of exhaust gases leaving the engine cylinders. The advantage of this solution is the effective use of gas energy, which is easily wasted in naturally aspirated units. The main disadvantages, however, are the lack of full control over the rotational speed of the turbine rotors . An example is the effector delays in the reaction of the engine when pressing the gas pedal. Before the turbocharger reaches full power, the speed of the exhaust must increase, and this depends on the speed of the crankshaft. In this way, burdensome delays arise.
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The whole scheme also works the other way around, because there is no possibility of a sudden reduction in the speed of rotation of the rotors. There are situations in which turbo generates too high pressure compared to the one required at the moment. In such cases, a bleed valve is used to reduce the pace of the rotors, allowing the exhaust to be directed back to the exhaust manifold. As a result, fewer gases hit the rotor blades, and these begin to turn more slowly. It also allows the turbocharger to be protected against possible negative effects of overpressure in the system.
Pressure boost sensor – function and prevention
The data necessary to make the right decision on opening or closing of the valve is made on the basis of information read by the boost pressure sensor, which is located inside the intake manifold. The rate of its wear is primarily affected by impurities in the air ducts. They can go to the system through a worn or poor quality filter.
For this reason, it is important to remember to perform regular inspections and replacements of filtering products using parts of original or brand-name replacements. Recommended companies include such companies as Bosch, Knecht or Filtron. The damage of the boost pressure sensor is exposed in particular to the engines of cars using sports cone filters. Their ability to retain impurities is much smaller than in the case of components with a factory design.