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Thread: Fuel/boost cut problem

  1. #1
    dinger1983's Avatar

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    Fuel/boost cut problem

    ok so getting fuel/boost cut its more like a stutter but it is a pain in the ass only happens wen i put the foot down like when coming of a round about never from stand still happend with a mbc and now with the ebc fitted even at low boost of 0.7 bar

    any thing i can do to stop this and will it get worse when i fit my fmic

  2. #2
    dinger1983's Avatar

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    as you can see from my old dyno was having same problem




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    Do you have EvoScan? It'd be helpful to know what the ECU thinks is happening

    It does look like fuel cut, though.


    Your FMIC won't let you run any extra boost, but it is likely to give you the same power you're getting at the moment with slightly less boost.

  4. #4
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    no i dont have evo scan dont know any 1 close that dose

  5. #5
    dinger1983's Avatar

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    was told when i got it dyno'd that the problem was boost spiking

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    You must be getting right peed off with this Scott as I know you got the EBC to try & sort this out.

    Where you not over fueling big time as well at the dyno run? Dont know if that would have anything to do with it but it might help these guys in the know.
    The mighty Leedsnum has gone but the Airtrek mods will soon fill this space


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  7. #7
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    What happend to all the other posts?

    Edit. Sorry my bad never noticed it was the other thread

  8. #8
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    he did say my fueling was abit mad i dont know will take it back when i get the intercooler on it and see whats what

  9. #9
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    I'm sure it was over fueling Scott going by the smell when it was on the dyno.

  10. #10
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    ye he said the mbc was pants and i had no correction on the boost so it was spiking of the grap the the ecu was cutting it so got the ebc which dose work well keeping the boost were i want it from wat i see on my gauge ther aint any spiking

    i still have a spare could have your name on it

  11. #11
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    I'm waiting for the ECU that John & kinky are doing before I go for EBC as if I'm right with what I'v read on here I wont need one as it will do it for me.

  12. #12
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    not seen that whats that about then

  13. #13
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    Search and you will find out

    have a look for 7201 flashing


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  14. #14
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    They,v cracked the 7201 ECU.

    Search Kinkyafro's threads you will fined it.

  15. #15
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    Beat me to it NJ

  16. #16
    dinger1983's Avatar

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    oh i new about reflashing the 7201 ecu but do you not need to get 1 first

  17. #17
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    ?? 7201 is what's fitted to PFL?


    If your fuelling was all over the place, I'd suggest you've either got a Leak, or it's time to try a different MAF.

  18. #18

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    go back to stock and see what happens
    If I'm replying to your thread and helping you out, it is because I like you and want to help out your VR-4 ownership. No other reason

  19. #19
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    sorry is there not another flashable ecu avalible

  20. #20
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    Ok I agree with Brad

    Stop all the mods , put the car back to 100% stock , get a dyno run done and you then have a baseline to run from . Clear all issues before pushing for more power as you will find it easier when you have a good baseline


    7201 is the ecu type of the Pre-facelift , it is only flashable by the process KANJ are using

    Later modules are 7202 which can be flashed via ecuflash , 7203 ecu's will also soon be flashable

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