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Audi A4 B5 1.6 AHL: Turns But Doesn't Start After Camshaft Position Sensor Replacement

Adam14762 7893 9
Best answers LABEL_AI_GENERATED

Why does my Audi A4 B5 1.6 AHL crank but not start after replacing the camshaft position sensor?

Check whether the fault is really the camshaft sensor, because the car started normally before the replacement and it behaves the same even with the old sensor connected, which points to a different problem such as a wrong/non-original part or timing being out of sync [#16763459][#16763478] Read the fault codes again and verify the exact error, including whether it is the camshaft sensor or the crankshaft sensor [#16763530] Recheck the timing carefully: confirm the TDC/GMP marks before removal and after assembly, because the shaft/camshaft alignment may be off [#16763558][#16763530] One reply also suggests checking the whole front/timing setup and making a compression measurement to rule out a mechanical issue [#16763560]
AI summary based on the discussion. May contain errors.
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  • #1 16763435
    Adam14762
    Level 8  
    Posts: 6
    Hello, my problem is that after replacing the camshaft position sensor the car turns, but does not start, you can hear that it almost catches but still nothing, and even as if it cuts off, please help
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  • #2 16763451
    Jamrug
    Level 17  
    Posts: 338
    Help: 18
    Rate: 177
    And what happened before the sensor replacement? Did he behave like that too?
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  • #3 16763452
    spinacz
    Level 42  
    Posts: 8576
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    Are there any mistakes What was the reason for replacing the sensor? New original sensor suitable for the car model?
  • #4 16763459
    Adam14762
    Level 8  
    Posts: 6
    The reason for replacing the sensor was the error of this sensor diagnosed by a mechanic, but I decided to replace it myself, the sensor is new but it is not original, I can not check the errors now, after connecting the old sensor the same
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  • #5 16763470
    spinacz
    Level 42  
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    And with the sensor disconnected, how long will you turn on the fire?
    Was the car also not working on the old sensors before you replaced it?
  • #6 16763478
    Adam14762
    Level 8  
    Posts: 6
    After unplugging the sensor does not fire the same way, before the replacement it fired normally, during the replacement the battery was disconnected
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  • #7 16763530
    spinacz
    Level 42  
    Posts: 8576
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    Well, now your computer has an old sensor and you need to see what's going on.

    Added after 1 [minutes]:

    And what was the exact mistake? Are you sure the shaft sensor and not the shaft? Timing checked?
  • #8 16763553
    Strumien swiadomosci swia
    Level 43  
    Posts: 27581
    Help: 1405
    Rate: 6430
    But to replace this sensor like a white man you need to remove the timing.
    So how was that?

    I feel made in the barn Janusz madafaka and the camshaft is adjusted.
  • #9 16763558
    Adam14762
    Level 8  
    Posts: 6
    Before removing the strip set in GMP and after folding the characters were also correct, I don't think it was a timing
  • #10 16763560
    Strumien swiadomosci swia
    Level 43  
    Posts: 27581
    Help: 1405
    Rate: 6430
    Mark on the coupling or screwdriver in the spark plug socket and mark on the shaft of the shaft, plus compression measurement.
    Equally, the intermediate wheel could change what drives the ignition apparatus.

    Added after 2 [minutes]:

    Have you downloaded the timing and the whole front?
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Topic summary

LABEL_AI_GENERATED
The discussion revolves around an Audi A4 B5 1.6 AHL that fails to start after the replacement of the camshaft position sensor. The owner reports that the car turns over but does not start, despite the engine almost catching. The sensor was replaced due to a diagnostic error, but it is a non-original part. The owner confirms that the vehicle was functioning normally before the replacement and that the battery was disconnected during the process. Various responses suggest checking for error codes, ensuring the timing is correct, and verifying the integrity of the camshaft and its alignment. There are concerns about whether the sensor replacement was performed correctly and if the timing was set accurately.
AI summary based on the discussion. May contain errors.
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