Category Archives for Sensors

Bosch-Common Rail System – Fuel pressure sensor

The fuel pressure sensor measures the current fuel pressure in the fuel rail very accurately and quickly and delivers a voltage signal to the PCM in accordance with the current pressure level. The fuel pressure sensor operates together with the … Continue reading

08. August 2018 by sam
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Bosch-Common Rail System – Fuel temperature sensor

The fuel temperature sensor is located in the fuel return system in a T-piece above the fuel rail. It measures the fuel temperature in the low-pressure system. With the help of this signal, the fuel temperature is continuously monitored to … Continue reading

08. August 2018 by sam
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Bosch-Common Rail System – APP

For safety reasons, the APP sensor is designed as a inductive double sensor. In this system, the signal from APP sensor 1 is transmitted directly as a pulse width modulated signal to the PCM. The APP sensor 2 signal is … Continue reading

08. August 2018 by sam
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Bosch-Common Rail System – Vehicle speed signal

1 Wheel speed sensors 2 ABS module 3 PCM The vehicle speed signal is determined by the Bosch common rail system via the wheel speed sensors of the ABS. The signal from the wheel speed sensors is transmitted via the … Continue reading

07. August 2018 by sam
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Bosch-Common Rail System – Combined IAT sensor and MAF sensor

1 MAF sensor The MAF sensor measures the air mass drawn into the engine. The MAF signal has an effect on the injected quantity and the injection timing. Furthermore, the MAF signal is used to control the exhaust gas recirculation … Continue reading

07. August 2018 by sam
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Bosch-Common Rail System – ECT sensor

The ECT sensor is located in the small coolant circuit of the engine and measures the coolant temperature. This sensor is a temperature-sensitive resistance element with an NTC (Negative Temperature Coefficient). The voltage value supplied by the ECT sensor is … Continue reading

07. August 2018 by sam
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Bosch-Common Rail System – BARO sensor

Function The BARO sensor is located in the PCM and measures the ambient air pressure. With increasing geographical altitude (for example when driving up a hill) the air density and therefore the air resistance decreases. This has an effect on … Continue reading

07. August 2018 by sam
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Bosch-Common Rail System – MAP sensor

The illustration shows the MAP sensor in a vehicle with a diesel particulate filter system The MAP sensor is located in the air intake tract downstream of the intercooler. The MAP sensor has the following functions: • Measuring the current … Continue reading

07. August 2018 by sam
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Bosch-Common Rail System – CMP sensor

The CMP signal is required by the PCM to activate the individual fuel injectors according to the injection sequence. The CMP sensor works on the Hall principle. The square-wave signal is used to identify cylinder 1, in conjunction with the … Continue reading

07. August 2018 by sam
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Bosch-Common Rail System – CKP sensor

CKP sensor installation position 1 Crankshaft vibration damper 2 CKP sensor The CKP signal is a prerequisite for the calculation of injected quantity and injection timing. The CKP sensor works according to the Hall principle and scans a magnetic disc … Continue reading

07. August 2018 by sam
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