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P0183 - Fuel Temperature Sensor fault

Discussion in 'A3/S3/Sportback (8P Chassis)' started by freegeek, Mar 24, 2014.

  1. freegeek
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    freegeek Member

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    [Mar 24, 2014]
    I have this fault and it is pretty persistent, I put in a new sender, the fault stayed, I soldered on an new connector and the fault stayed.

    I just saw that Ross Tech say check the fuse, anyone know which fuse to check?


    From Ross Tech.

    P0183 - Fuel Temperature Sensor A (G81): Open or Short to Plus [h=4]Possible Symptoms[/h]
    • Malfunction Indicator Light (MIL) ON
    [h=4]Possible Causes[/h]
    • Fuse(s) faulty
    • Wiring and/or Connector(s) from/to Fuel Temperature Sensor A (G81) faulty
    • Fuel Temperature Sensor A (G81) faulty
    [h=4]Possible Solutions[/h]
    • Check Fuse(s)
    • Check Wiring and/or Connector(s) from/to Fuel Temperature Sensor A (G81)
    • Check/Replace Fuel Temperature Sensor A (G81)
      • Check Measuring Value Blocks (MVB)
    #1
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  3. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Mar 24, 2014]
    Have you logged your fuel temps? Just wondered what VCDS was displaying.
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  4. freegeek
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    freegeek Member

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    [Mar 24, 2014]
    I had a look a week ago or so and was stuck at something like 39degC
    #3
  5. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Mar 24, 2014]
    What engine do you have? I logged my 2.0 TDI last week and when warmed up the fuel temp sat at 60 degrees. So I'd guess if yours is stuck at 39 the sensor might be iffy!
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  6. freegeek
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    freegeek Member

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    [Mar 24, 2014]
    Its a 1.9tdi but its also a brand new sensor, I guess the sensor is just a resistor so I will try measuring it in hot and cold water.
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  7. freegeek
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    freegeek Member

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    [Mar 24, 2014]
    Checked the sensor, 600ohms in a cup of hot water amd 10kohms under the cold tap, so the sensor is OK, has anyone else changes a fuse to fix this like recommended by Ross Tech? If there isn't a fuse the it must be a wire break somewhere pretty inaccessible.
    #6
  8. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Mar 24, 2014]
    Just check all fuses for any blown ones.
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