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Thread: 1.9 TDI AJM PD not starting, replaced crankshaft.

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  1. 1.9 TDI AJM PD not starting, replaced crankshaft. 
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    My engine struggles to fire up. It's cranking but won't get going. Sometimes, randomly, it does start and drives fine.

    Got an error code checked which came back with the following.

    16705/P0321/000801 - Engine Speed Sensor (G28): Implausible Signal

    Possible Symptoms
    Engine shuts off
    Engine doesn't start
    Speedometer inoperative
    Glow Plug Indicator Lamp (K29) flashes
    Possible Causes
    Engine Speed Sensor (G28) loose
    Engine Speed Sensor (G28) faulty


    Possible Solutions
    Check Engine Speed Sensor (G28)

    So I hastily had the crankshaft sensor replaced. It's no better. Same problems.

    I'm beginning to think it's a wiring problem so will have to test that. RossTech also suggests the following

    "When found in a VW Golf/Jetta (1J/9M) or Audi A3 (8L) with 1.9l TDI-PD (AXR), check TPI 2007067 which explains issues with electro magnetic interference. A modification to the wiring will fix this problem, extensive details can be found in the named TPI."

    How can I get hold of this TPI diagram/How To?

    Would also welcome other suggestions/fixes

    Thanks
    2001 Bora TDi PD 115 (AJM)
     
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  2. Re: 1.9 TDI AJM PD not starting, replaced crankshaft. 
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    Anthropogenic climate change, the biggest con inflicted on mankind since religion...

    Slava Ukraini
    !


     
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  3. Re: 1.9 TDI AJM PD not starting, replaced crankshaft. 
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    Thanks, although looks easy I bet it's not.
    Need to get myself a multimeter now
     
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  4. Re: 1.9 TDI AJM PD not starting, replaced crankshaft. 
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    Finally got it sorted. Noticed the pattern that car only started when engine was cold. Once it warmed up, if I switched engine off then it would crank but not fire up.

    Solution: replaced Relay 109.
     
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  5. Re: 1.9 TDI AJM PD not starting, replaced crankshaft. 
    #5
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    That old one, I have been dealing with 32, 30, 109 ECU relay problems since the early 90's on the Golf 2 8v GTI onwards. The daft thing was from 88>90 they did not have one so never had the problem, VW fitted one in 1990 and all hell let lose a few years later until in 95 they got rid of it and the problem slowly went away only to come back in the noughties when in 1998.....they re-introduced an ECU relay! Muppets!
    Anthropogenic climate change, the biggest con inflicted on mankind since religion...

    Slava Ukraini
    !


     
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