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Thread: Common tuning FAQ

  1. #41

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    Well not really, a manual 206kW stagea on the same dyno makes 135 at al four, make 160something with the front driveshafts removed.... Mainlines also read a little low, I wouldn't worry about what number it makes, I'd look at what you get before and after doing something....

  2. #42
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    Thanks for updating thread title

    Mods, is there a way to stop a thread from being locked after no modifications? I'd like to be able to edit the original post to add more questions as they arrive
    Want your car tuning? Here's my pricing
    Have questions about performance upgrades and ECU tuning? Before PM'ing me, Check this thread first
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  3. #43

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    Quote Originally Posted by Shtiv View Post
    I wouldn't worry about what number it makes, I'd look at what you get before and after doing something....
    That is correct. However, I will start by trying to bring back stock power. You mentioned fuel pump, turbos are obvious issue on any turbo engine, is there other problematic spots, which deteriorate the output?

  4. #44

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    To get back stock power look at the fuel pump, as mentioned earlier, then check and replace spark plugs, fuel filter, air filter.

    I'd also check the intake system for leaks, especially the recirc valve and soft pipes. They will have deteriorated over the years and heat in the engine bay.

    Also make sure your oils are fresh, and give the engine a good oil flush - this always seems to bring back some power.

  5. #45

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    Thanks, Daniel. What is the pressure in fuel rail on good pump?

  6. #46

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    I'd also look at seals everywhere, amazing the number of boost leaks you'll find when you look. Often they make less than stock boost too due to the bleed solenoid being dead or the plumbing being changed a bit.

  7. #47
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    I have just got a John Nutter flashed ECU off Wobble , (mine is a black plastic one) the one i got is a metal one with green plugins , it says at the beging of this thread that they are swapable , i get SRS ABS and Engine managment light on ?mine is manuel wobbles auto
    , ?
    ian

  8. #48

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    Sounds like the wrong rom is flashed on it. Either change the periphery, or put correct rom.

  9. #49
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    If i knew what you were on about id do it !!lol
    ian

  10. #50

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    Hi,
    Looking at getting a later type ECU so I can play with flashing ROM's and changing fuel maps etc myself at a later date and keep finding ECU's that so not fall into the categories in the first post in this thread.

    I keep finding people with ones for sale that have a silver case but with black plugs??

    Any ideas where this falls into the scheme of things.

    I have a silver case with green plugs at the moment (7201) however would like to be able to run with switchable maps at a later date so I can run a few degrees more advance for LPG.

    Kind regards,
    Ian
    1997 Legnum VR4 Manual
    BBS 16" Alloys
    LPG Converted
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    Innovate AFR Meter with narrow band emulation to ECU
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    LPG converted
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  11. #51

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    Just want to ask, please excuse me if already got similar thread, but nowhere find something about immobilizer and ECU swapping...
    What if, for example, car equiped with 7201 swap with 7203 one, does it have to change the key and immobilizer too?

  12. #52
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    I'm fairly certain that any immobiliser fitted will be after market as it is not common to have them in Japan. You should be able to swap ECU without worrying about the immobiliser compatibly but sure someone else with confirm
    Possibly the only VR4 that was driven by the current owner before being registered..... & it's a UK car

  13. #53
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    Quote Originally Posted by mmotors View Post
    Just want to ask, please excuse me if already got similar thread, but nowhere find something about immobilizer and ECU swapping...
    What if, for example, car equiped with 7201 swap with 7203 one, does it have to change the key and immobilizer too?
    Immobilizer implemented into ecu was only European Market Galant n/a feature. No such thing in JDM vehicles, so just ecu swap.
    Ex: Galant VR4
    Running 268 HP ATW and 443 Nm torque at 0.9 bar
    Now: Lancer Evolution 8 FQ-300
    Running 325 HP ATW and 510 Nm torque at 1.6 bar

  14. #54

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    Trying to get hold of you jason

  15. #55

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    Hi guys,

    First of all I have to admit that I'm a real noob at flashing roms on a cars ECU. I have done it several times with my phone and tablet.

    Recently I have bought another ECU. My '97 VR-4 Saloon is equipped with a pre-facelift 7201 ECU and I wanted to get rid off that annoying speedlimiter and that manual boost controller the former owner had placed.

    I have placed the H8/539-ECU in my car, took a laptop, The Openport 2.0 cable and installed EcuFlash.

    When I check the cars properties (1997 / AT / ...), it's all correct. All I want is to remove the speed limiter by changing the speed in 300km/h and change the boost into 0.8 instead of 0.6. I saved the file but when i want to flash it a error occures.

    2 images get compared and they are not equal and so the flashing ends and nothing has changed.

    Is there a simple solution? Have I forgotten something? Do you need some extra information?

    Kind regards, Serge.
    -- May The Boost Be With You!! --

  16. #56
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    Solution: get yourself 7202 ecu.
    H8 ecus from vr4 are PITA to flash, and in most times EcuFlash won't work with them using OpenPort 2.0.
    Try get OpenPort 1.3U which is widely use by Evo 7-9 community for flashing their H8 ecu.

  17. #57

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    That's of course not the answer I wanted to hear..OpenPort 1.3U would be the solution?

  18. #58
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    Can't give you definitive answer.
    But ecu's from Evo7-9 are based on H8 chip and they "work" only with EcuFlash using 1.3U cable. Version 2.0 works fantastic only on older 7202 chips (Evo 5-6) and newest Evo X ecu.
    It's been quite often reported that flashing vr4 H8 ecu can be a PITA with EcuFlash. I know that few did succeed using MMCFlash.

  19. #59

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    Allright, that means the ECU goes back to the previous owner..

    Thanks alot.

  20. #60
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    I believe that Tomasz is correct in stating that you need MMCFlash to reprogram an H8 ECU on a VR4.

    '97 Manual Legnum in silver with some subtle mods

    My first VR4 - '97 Legnum Dark Green & mean ...it was love at first sight - now sold

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