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Thread: L322 3.0 litre fuel pressure reading at idle

  1. #1
    Roverlord off road spares is offline AT REST
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    L322 3.0 litre fuel pressure reading at idle

    Any one know what the pressure for the high pressure fuel pump should be. i am still chasing the surgy idle . I am showing live values om iidtoolBT at 4000 -4900 psi, it jumps within this range, would have thought it woulds have been steady.
    also interested if you have live values on the Cylinder Comp figures. if you can post
    Regards, Mario


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    Quote Originally Posted by Roverlord off road spares View Post
    Any one know what the pressure for the high pressure fuel pump should be. i am still chasing the surgy idle . I am showing live values om iidtoolBT at 4000 -4900 psi, it jumps within this range, would have thought it woulds have been steady.
    also interested if you have live values on the Cylinder Comp figures. if you can post
    Regards, Mario
    Thats over 20% variation... i would be concerned about an injector leaking off...

    Jc
    The Isuzu 110. Solid and as dependable as a rock, coming soon with auto box😊
    The Range Rover L322 4.4.TTDV8 ....probably won't bother with the remap..😈

  3. #3
    Roverlord off road spares is offline AT REST
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    Quote Originally Posted by justinc View Post
    Thats over 20% variation... i would be concerned about an injector leaking off...

    Jc
    Thanks Justin, I replaced 2 injectors with brand new ones and had the 4 cleaned and tested last year, I haven't do too many kms on them, but you may be on the money.
    there is a dyi simple leak test . I'll post some readings on cyl balances it shows some cuttting in and oit and all over the place figures, which I don't know how to interprete.
    Cheers, Mario
    fullfatrr.com - View topic - Howto: Diesel Leak Off Test on the cheap


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    Roverlord off road spares is offline AT REST
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    I didn't have a leak down tester so I bought one today, only a cheapy, but should do the job. Wasn't going to spend $200 -500 on a better kit.
    looks easy enough to do, and access to the injector tops is easy on the 3.0 litre

    https://www.ebay.com.au/itm/132203904942





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