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This is a discussion on 02 wrx won't start after reflash within the Tuning: Electronic Engine Management forums, part of the Tech & Modifying & General Repairs category; Ok, checked the relay and its still good. Car is running pink injectors. When the car was first started the ...

  1. #16
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    02 wrx won't start after reflash

    Ok, checked the relay and its still good. Car is running pink injectors. When the car was first started the shop noticed that the fuel pump was running at 80 psi. so we haven't started it since. Hoping that the new map would tone it down.

    Noticed that the battery is pretty weak. Going to get a new one and see if that helps.

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  3. #17
    Subaru Newb MainFrame's Avatar
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    Shouldn't flash with a weak battery. .if your car battery dies during the flash then the ECU will brick.

    The map shouldn't have anything to do with fuel pressure. . That is a function of the fuel pressure regulator.



    Also, if you have 565cc Pink injectors, then the stage one map you were trying to flash is not made for your car. Stage one maps have stock injector scaling.
    Last edited by MainFrame; 01-26-2013 at 05:13 PM.

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    Re: 02 wrx won't start after reflash

    Quote Originally Posted by dash05 View Post
    Ok, checked the relay and its still good. Car is running pink injectors. When the car was first started the shop noticed that the fuel pump was running at 80 psi. so we haven't started it since. Hoping that the new map would tone it down.

    Noticed that the battery is pretty weak. Going to get a new one and see if that helps.
    That doesn't seem correct. How did the shop determine the fuel pressure?

    Quote Originally Posted by MainFrame View Post
    Shouldn't flash with a weak battery. .if your car battery dies during the flash then the ECU will brick.

    The map shouldn't have anything to do with fuel pressure. . That is a function of the fuel pressure regulator.
    Almost happened to me recently...



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    02 wrx won't start after reflash

    They got the fuel pressure off of the diagnostic machine they have.

    Where is the pressure regulator located cause neither the shop or I can find it?

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    Re: 02 wrx won't start after reflash

    Quote Originally Posted by dash05 View Post
    They got the fuel pressure off of the diagnostic machine they have.

    Where is the pressure regulator located cause neither the shop or I can find it?
    It's located off the passenger side fuel rail. Although I seriously question the shop's analysis. More so if they cannot locate the FPR. Per my understanding, the ECU cannot read the Fuel Pressure directly, only the Fuel pump duty cycle. I'm not sure how they would have determined the pressure at the location of something they cannot find.

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    02 wrx won't start after reflash

    Going to look for a stage 2 map and a new battery. I'll report back right after. Thanks everyone!

  8. #22
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    Re: 02 wrx won't start after reflash

    I had this problem when I first flashed my car. Long and embarrassing story short.... I had blown a fuse.

    Posted from a fone.
    Last edited by UEDan; 01-26-2013 at 07:47 PM.

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    Quote Originally Posted by dash05 View Post
    Going to look for a stage 2 map and a new battery. I'll report back right after. Thanks everyone!

    Your car is not stage two, so that map wouldn't work either. You already said the car has different injectors. All off the shelf maps are made to only work with stock injectors.


    I'd have to agree with Zach, this so called shop sounds shady and incompetent if they can't even locate the fuel pressure regulator. I'm not sure what this "diagnostic" is that they did. . The only way to read fuel pressure is to install a fuel pressure gauge. AND, if your static pressure really was 80psi you would have to get that fixed before you could even consider tuning, let alone driving the car. If a shop cannot even locate a FPR they have no business working on cars.

    Why exactly are you running after market injectors in the first place?

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    I got the car with them installed already. The car came with an exhaust, intake, aftermarket boost controller, turboxs UTEC (Which was removed), pink injectors and a VF30 turbo. I believe the previous owner was running a FMIC also but later removed it before selling.

    Guess I have to hunt down stock injectors now.

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    02 wrx won't start after reflash

    Anyone have a set stock injectors they are looking to sell?

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    I'm confused. Do you still have the vf30, boost controller, exhaust, etc? Or is all of that uninstalled?

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  13. #27
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    Quote Originally Posted by dash05 View Post
    I got the car with them installed already. The car came with an exhaust, intake, aftermarket boost controller, turboxs UTEC (Which was removed), pink injectors and a VF30 turbo. I believe the previous owner was running a FMIC also but later removed it before selling.

    Guess I have to hunt down stock injectors now.
    Just use ATR to rescale your injectors.

    It's no wonder the car wouldn't start... if the car had 565cc/min injectors and the map scaled to 420cc (stock), the pulse width is far too short. Actually, it's rather a GOOD thing your car didn't start.
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    Quote Originally Posted by wrxtreme06 View Post
    I'm confused. Do you still have the vf30, boost controller, exhaust, etc? Or is all of that uninstalled?
    Yes I still have them. Only thing uninstalled was the UTEC.

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    Quote Originally Posted by zax View Post
    Just use ATR to rescale your injectors.

    It's no wonder the car wouldn't start... if the car had 565cc/min injectors and the map scaled to 420cc (stock), the pulse width is far too short. Actually, it's rather a GOOD thing your car didn't start.
    Ok, going to read up on rescaling. Thanks

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