Re-Mapped ECU Learning Trick 10-20hp in 5 seconds :) - Page 6
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This is a discussion on Re-Mapped ECU Learning Trick 10-20hp in 5 seconds :) within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; 1PSI = 0.00689 MPa so 2-4psi = 0.0137-0.0275MPa Hope that helps....

  1. #76
    Registered User Dick Nogs's Avatar
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    1PSI = 0.00689 MPa

    so

    2-4psi = 0.0137-0.0275MPa

    Hope that helps.

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  3. #77
    Registered User ShotgunTC88's Avatar
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    Originally posted by **** Nogs
    1PSI = 0.00689 MPa

    so

    2-4psi = 0.0137-0.0275MPa

    Hope that helps.
    Nick thanks man,

    But which "white dash" after 0 would that be?



    Shotgun
    (They used Abacuss,s in my day dammit.. )

  4. #78
    Registered User Dick Nogs's Avatar
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    Originally posted by ShotgunTC88
    Nick thanks man,

    But which "white dash" after 0 would that be?



    Shotgun
    (They used Abacuss,s in my day dammit.. )
    well...... i'm not 100% sure because i don't know how many tickmarks there are going from 0 to 0.1 on that gauge.

    If it goes:

    - 0.1
    -
    -
    -
    -
    - 0.05
    -
    -
    - <-- aim for this tickmark on the dial
    -
    - 0
    then you'd want to aim for somewhere around the 2nd tickmark after the 0. that would be 0.02, right?
    Last edited by Dick Nogs; 06-13-2004 at 04:09 AM.

  5. #79
    Moderating on the run! Big Sky WRX's Avatar
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    Just remember that this 'trick" doesn't always work- w/o a way to actually moniter the AM. Example we took my buddies car out for a run and he was at 11 AM we decided to reset, getting him to 8 and then do the trick to get him to 16.
    We watched the AM climb to 12 and then fall to 7. We reset it again, did the trick and voila 16 AM.

    If it bogs too much it will drop the AM and not raise- kind of a fine line and w/o delta dash or similar logging software- somewhat a shot in the dark.

    Big Sky

  6. #80
    Registered User ShotgunTC88's Avatar
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    Originally posted by **** Nogs
    well...... i'm not 100% sure because i don't know how many tickmarks there are going from 0 to 0.1 on that gauge.

    If it goes:



    then you'd want to aim for somewhere around the 2nd tickmark after the 0. that would be 0.02, right?
    That sounds about right, I guess I may wait till I get the Access Port (Should get here around 2005. ) and use its on board boost gauge.

    I appreciate ya takin time to help me convert the numbers


    Shotgun

  7. #81
    Registered User ProblemChildWRX's Avatar
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    Originally posted by KurleeDaddeeWRX
    This trick works fine on the stock ECU as well.

    Get a 10mm socket or wrench and take off the negative batter terminal. Make sure it is bent to the side, as you do not want it to make contact with the body of the car or the negative battery terminal.

    Get into the car and press the brake for 5 seconds. You will see the odometer disappear.

    You ECU has now been reset.

    Follow Shivs instructions. Very easy to do. And it works every time.
    I unplugged the neg cable from the battery, but the odometer never disappeared. I know I have a battery back up for my alarm system, but I don't know if the battery back up won't allow me to reset the ECU by just disconnecting the neg cable. Is there another way to reset the ECU?
    "If at first you don't succeed, then skydiving is not for you."

  8. #82
    Registered User Dick Nogs's Avatar
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    yes, just get a code scanner and clear it.

    clearing codes = resetting ecu.

  9. #83
    Registered User ProblemChildWRX's Avatar
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    Originally posted by **** Nogs
    yes, just get a code scanner and clear it.

    clearing codes = resetting ecu.
    Where do I get a code scanner? How much are those?
    "If at first you don't succeed, then skydiving is not for you."

  10. #84
    Moderating U! KurleeDaddeeWRX's Avatar
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    Originally posted by ProblemChildWRX
    I unplugged the neg cable from the battery, but the odometer never disappeared. I know I have a battery back up for my alarm system, but I don't know if the battery back up won't allow me to reset the ECU by just disconnecting the neg cable. Is there another way to reset the ECU?
    Did you press the brake pedal down for 5 seconds or more to pull out any electricty still stored in the electrical system? FYI, the odometer will still stay lit for a few seconds after you unplug the negative battery cable.

  11. #85
    Registered User Dick Nogs's Avatar
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    Originally posted by ProblemChildWRX
    Where do I get a code scanner? How much are those?
    for about $89 i think they sell one at most parts stores made by Actron. It is orange and has about 6 buttons or so.

    Just go ask for a portable OBD2 scanner that will work on a subaru.

  12. #86
    Registered User ProblemChildWRX's Avatar
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    Originally posted by KurleeDaddeeWRX
    Did you press the brake pedal down for 5 seconds or more to pull out any electricty still stored in the electrical system? FYI, the odometer will still stay lit for a few seconds after you unplug the negative battery cable.
    I pressed it for a little over 10 sec. The odometer never dissappeared and I even turned on the radio. I think it's all because of the battery back up I have for the alarm system. But, how do I know that the the ECU was reset?
    "If at first you don't succeed, then skydiving is not for you."

  13. #87
    Registered User Dick Nogs's Avatar
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    without proper hardware/software it's hard to know for sure if the car got reset, but a few of the indicators are:

    -it's hard to start the first time
    -it feels slow

  14. #88
    Registered User ProblemChildWRX's Avatar
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    Originally posted by **** Nogs
    without proper hardware/software it's hard to know for sure if the car got reset, but a few of the indicators are:

    -it's hard to start the first time
    -it feels slow
    No, it started really easy and it was still fast. I guess i need to get a code scanner to reset it.
    "If at first you don't succeed, then skydiving is not for you."

  15. #89
    Registered User J.D.'s Avatar
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    OK so I just did the Shiv trick on my stock ECU & I think I did it perfect.

    Here are the results that I ended up with:

    The Positives:

    The car seems spunkier
    seems to have a better & smoother throttle responce
    overall feels faster & I need to take into consideration that I'm in AZ. & it's 100 degrees out.

    One negative:

    I'm not hitting the target 13.5 boost. Actually it hits it then drops to 11.6-12.0

    My question is as I drive it & it cools down outside does the ECU over time raise the boost back up to the 13.5 mark???

    Let me know if you've had similar results or if anyone has any input.

    thx,
    jd
    "It only takes a moment to change your attitude, & at that moment it will change your life."

  16. #90
    Registered User bigmikelv's Avatar
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    Will this trick work with an Automatic WRX?

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