Correct Supply Voltage for Shaft Position Sensor in AUDI A6 C6 3.0 tdi BMK

Question

Hello, I have a question about the supply of shaft sensor in the above described model. From what I measured it reaches 2.54 v. A request for a hint as to the correct supply voltage for this sensor. The sensor, of course, replaced, the fault still active is manifested by a difficulty in starting...

-kris- · Accepted Answer

it's possible that this will help you, - crankshaft is a crankshaft position and speed sensor

paszczakq · Answer

Or maybe this invention on 4-5 chains (timing) has already reached out so much that nothing fits together?

koszynek · Answer

I take this into account, however, before I remove the engine, I want to rule out other causes. That is why I repeat the question about supplying the shaft position sensor, the logic of the sensor is inductive and it should get 12v. Waiting for a hint.

paszczakq · Answer

Sooner 5V. But I do not want to mislead. Optional error reading remains maybe elsewhere is the cause.

koszynek · Answer

5v is the supply for hall sensors, in this case the camshaft sensor is powered. The sensor on the crankshaft is an inductive sensor.

Pawel wawa · Answer

The induction sensor does not check the power supply voltage. Probably still measured on the unfastened ankle. You can check this sensor with an oscilloscope or a LED. It will be better to measure the sensor resistance by measuring everything on the controller connector, you check the beam by the way, than the voltage on the cube.

adrian230492 · Answer

Hello, will someone suggest exactly where to look for the sensor?

koszynek · Answer

The induction sensor is also powered, it is also required to check the correctness of the power supply. Usually it is a voltage around 5 Volts without a load which is an inductive sensor.

lukashb · Answer

I have not met. So far. The induction sensor itself generated pulses, without any DC component present on its pins from the ECU side. Because what is the point to heat the coil? we are talking about a two-pin inductive sensor, a simple magnetic coil.

koszynek · Answer

Since I wrote that it is powered, it means it is.

lukashb · Answer

I will continue to maintain that you are wrong. Insert a scan from the autodata what it says. I will throw a fragment from the study of dr hab. Eng. Stanisław Duera

koszynek · Answer

No i'm not wrong It's as I wrote. Most of the inductive sensors I encounter in my work can generate an alternating current of about +/- 1 Volt (signal amplitude ~ 2V). These 5 Volts with a current of several dozen miles Amperes (usually 20-40) I am writing about provide a constant component for digital logic circuits. This component after connecting the sensor, which is also a resistor and load for this connection, oscillates around 2.7 Volts, and thus we get signal amplitude at the level of 0.7 Volts to 3.7 Volts. Digital logic circuits from the CMOS group can interpret such signals and any voltage above 3.4 Volts will be considered high (logic 1) while any voltage below 1 Volt will be considered low (logical 0). Thanks to this operation the driver knows what to do the sensor tells him what he saw and what he counted.

PS When I started this thread, I did not have such knowledge, so I decided to learn and improve. What I learned many years ago, unfortunately, did not cope with current systems and realities today.

-kris- · Answer

hi according to the program, both sensors are of the same type - camshaft is a camshaft the autodata I have has very little information about this engine hi

koszynek · Answer

Further to this topic, the answer is all the parameters read were correct, the wrong flywheel was fitted to the car.

Correct Supply Voltage for Shaft Position Sensor in AUDI A6 C6 3.0 tdi BMK

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