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Is the camshaft sensor defective? We know the symptoms, we know how the change works and we also have some information about the costs involved! Yes, first some general information. The camshaft sensor (another name is camshaft position sensor) has the task of continuously the position of the corresponding camshaft. The sensor then transmits the values to the engine control unit, which, among other things, Fuel injection is regulated. Defects in the camshaft sensor can occur in older cars due to wear and tear, but also due to material defects. The signs of this can be different. You usually notice it when the engine runs rough or jerks, the performance is limited, the car goes into emergency mode, the engine does not even start, the engine stops while driving, the check engine light (MIL) is active / flashing or it there is an entry in the error log such as "Camshaft position sensor signal implausible".
Camshaft sensor relevant for the HU?
The main inspection is carried out with an illuminated engine control light or a fault in the control unit failed. Even if the car doesn't start or goes into limp mode, it gets no new MOT. In the case of corresponding symptoms, it is first necessary to find out whether a defective camshaft sensor is really the reason for the problems. A Error memory entry may be the first clue here. You can also check the sensor with a diagnostic tester or, in the case of an inductive sensor, with an oscilloscope.
A broken sensor always will with a new part replaced. Used parts are not recommended. If the error is not hidden directly in the sensor, but in the connector or in the wiring harness, then it can usually be repaired or the appropriate part can replaced individually will. The amount of work required to change the sensor can vary greatly. On some vehicles, the camshaft sensor is located directly under the engine cover, on others it is difficult to access, which can increase the effort significantly. In quite a few cases it even has to the toothed belt can be removed. If the old sensor is dismantled, the new one can be attached and all parts are reinstalled. The fault memory is then cleared and a test drive is carried out to check whether the fault has been rectified.
cost of switching
A new camshaft sensor costs between 20 and 250 euros. Bosch, Hella and Valeo are among the best-known manufacturers of spare parts. Depending on the accessibility of the sensor, the workload is between half an hour and two and a half hours. At an hourly rate of 100 euros, labor costs of 50 to 250 euros are incurred. The total costs range from 70 to 500 euros.
Function of the camshaft sensor!
The camshaft controls the opening and closing of the valves in the combustion engine. The camshaft sensor is responsible for checking the position of the respective camshaft at all times and transmitting the data to the engine control unit. From the information obtained, this can determine, for example, when fuel must be injected into which cylinder. Depending on the design, each engine has either one, two or four camshafts. Each camshaft is equipped with its own sensor.
The following note is essential: For safety reasons, tuningblog recommends all repair, inspection and maintenance work exclusively to be carried out in a specialist workshop! Although our information is summarized to the best of our knowledge and belief, we cannot assume any liability for the content. All information is therefore "without guarantee".
Of course, that wasn't the end of it!
In this tuningblog category there are guides and instructions for common defects/repairs on the vehicle and for installing accessories/tuning parts. Our articles explain in a simple way common defects and the corresponding repairs, as well as explaining how the first signs of a defect become noticeable. In most cases, we also have initial clues to the repair instructions in our repair instructions approximate The costs of the pending repair are listed. The goal of our subcategory “Auto Repair Guide“ is to create a head start in knowledge for the next visit to the workshop with initial tips. This may save you from tedious troubleshooting and small things can perhaps be done directly on your own. The same applies, of course, to the installation of accessories/tuning parts. Here, too, we would like to help with the implementation with instructions and tips. There are many other posts on this as well. Below is an excerpt of the last and HERE there are all previous instructions:
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