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Golf 4 1.6 Akl - Golf IV 1.6 SR AKL - Does not fire - no spark

trumnica 13251 6
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
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  • #1 16456188
    trumnica
    Level 19  
    Hello. When turning the starter, vcds cannot see the rotation. I checked the transition from sensor g28 to the controller and it's ok.
    The sensor has 3 pins:
    mass - it's ok
    signal - which goes to pin 63 in the controller - and here note pin 63 is shorted to ground in the controller
    power supply - no power to the sensor from the controller.
    Does this 100% mean a fallen driver? Has anyone had this case?
    The engine diagram is attached.
    Attachments:
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    #2 16456238
    Pawel wawa
    VIP Meritorious for electroda.pl  
    Something colleague was kindly mixed up, everything is good, mass, screen and signal. It's an inductive sensor.
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    #3 16456246
    grala1
    VAG group specialist  
    As I remember, this engine starts without this sensor.
    This is an inductive sensor and not a Hall, so don't be surprised.
    Check the G40 sensor of the shaft, under the camshaft, plug right next to the housing on the head.
  • #4 16456401
    trumnica
    Level 19  
    I checked the g40 - the power supply has, the led blinks when turning the starter, however, the engine will not start, I checked the signal from g40 to the controller and ok. Which sensor gives the driver information about the RPM in this engine?
    VCDS does not see the rotation, does not throw errors, as I plug out the plug from g28, it throws out that the wrong signal, the tachometer does not vibrate.
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  • #5 16457221
    Anonymous
    Level 1  
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  • #6 16460982
    trumnica
    Level 19  
    Problem solved - I will describe the solution because it was a bit complicated.
    All the time the VCDS could not see the engine speed, only after I changed the ignition coil, did the speed and weak spark appeared - the engine still did not ignite.
    It turned out that the voltage on line 15 that supplies the module is 3V lower than the battery voltage - the ignition switch insert was blamed.
    The damaged ignition coil had a lower resistance between the power pins and probably the voltage drop to "15" was even greater, so no rotation was seen.
  • #7 18319718
    Śrem
    Level 2  
    Hello my golf 4 1.6sr akl 2000, I do not want to start today a mechanic drove up a computer and showed that the hall sensor is dead ... Anyone had a problem with this?
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Topic summary

The discussion revolves around a Golf IV 1.6 SR AKL engine that fails to start due to a lack of spark and inability to detect engine rotation via VCDS. Initial checks confirmed the G28 sensor's mass and signal were functional, but power supply to the sensor was absent. Users suggested that the engine could start without the G28 sensor, pointing to the G40 sensor as a potential issue. After further investigation, the author discovered that replacing the ignition coil resolved the issue, revealing a voltage drop on line 15 due to a faulty ignition switch insert. The damaged ignition coil had contributed to the problem by lowering resistance and exacerbating the voltage drop, preventing the detection of engine speed.
Summary generated by the language model.
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