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1.8 tdci top end rebuild

Kevwrightuk
Kevwrightuk
in Ford Galaxy Club

Featured Replies

Morning. 
I have just replaced the head gasket in my Galaxy engine. 
gotbit started after much bleeding but now getting fuel pressure oscillating wildly and preventing it idling. 
loads of 88 and 87 (too high or too low) errors. 
strange thing is when I disconnect the fuel pressure sensor plug, it idles fine although clearly jerky. 
what could be causing this constant fluctuation given I’ve just rebuilt the top end. 

773C76EC-76F3-4AAA-AC06-AF7AE08D8887.png

  • Quote


    • Author
    On 2/13/2022 at 1:10 AM, Kevwrightuk said:

    Morning. 
    I have just replaced the head gasket in my Galaxy engine. 
    gotbit started after much bleeding but now getting fuel pressure oscillating wildly and preventing it idling. 
    loads of 88 and 87 (too high or too low) errors. 
    strange thing is when I disconnect the fuel pressure sensor plug, it idles fine although clearly jerky. 
    what could be causing this constant fluctuation given I’ve just rebuilt the top end. 

    773C76EC-76F3-4AAA-AC06-AF7AE08D8887.png

    It really is odd. Here's todays graph using Forscan:

     

     

    Capture.JPG

  • Quote
    • Author

    So for those that may be interested, the cause has been established. 
    I had inadvertently swapped the 2 connectors on the fuel pump when rebuilding. 
    Swapping the connectors immediately cured it. 
    running perfectly now. 

  • Quote

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