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Thread: Dead Roadrunner, not sure how but water damage.

  1. #1
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    Default Dead Roadrunner, not sure how but water damage.

    I had worked on a 2002 Z06 a few years ago, and left my roadrunner installed in his car for about 1 year and finally got it back from him about a year ago but it was missing the USB cable. A few months ago, I ordered a new one, and I went to use it on another 2003 Z06 today and it did not work. I could connect with the USB cable and was able to communicate, but no connection to the OBD2 port.

    I decided to take it apart to see if the board has come loose, but that was not the case. Somehow, water had damaged the ECM, and there was corrosion all over the triacs and all over the case. Fortunately it looks like the roadrunner may still be ok, but the stock ECM is likely toast.

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    A few things I noticed, the board is a 1999-2000 ECM, not a 2001-2002 as I thought it would have been.

    Anybody know the part number of the 44 pin header? I hate to pay $8.00 to ship a $10 part and will be placing an order with mouser or digikey in the next couple of days?

    I do not know if the through case connector can be salvaged, or if it is toast as well, there is lots of corrosion growing on it.

    Thanks,

    Ryan

  2. #2
    Forum tyhee Site Admin GMPX's Avatar
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    Ryan, you might have to ask Moates for the part number (or manufacturer) of the 44 pin header.
    What a shame, the PCM sure has had some water through it.
    Need official EFILive help, please go here.
    For tuning support please post your questions on this forum (or other auto forums).
    Sorry if I don't respond to your PM, don't take it personal.


  3. #3
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    FYI, if its a 512kb PCM then it wont work on an 03-07 LS1B PCM anyway as they have 1MB flash.

    Also, 99-02 512kb PCMs are usually interchangeable. A common upgrade for 99-01 vehicles is to use an 02 OS as it is more refined than earlier OSs.
    ~Erik~
    2013 Sonic RS Manual - 1.4L I4T E78, starting the mods
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  4. #4
    Lifetime Member mr.prick's Avatar
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    Water will kill the RR's battery.

    You may need to replace it. Sneaky:
    512k RoadRunner Firmware 12.14R
    FlashScan V2 Bootblock V2.07.04 Firmware V2.07.22 EFILive V7.5.7 (Build 191) V8.2.1 (Build 181)
    LC-1 WBO2

    _________________________________________________

  5. #5
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    Removed the 44 pin header without damage and re installed it into a new PCM, It works on the bench, so now I need to find a car to test it with.

    I am glad I do not do this kind of SMD rework on a daily basis

    Ryan

  6. #6
    Lifetime Member N0DIH's Avatar
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    I do it daily, and under a microscope 95% of the time. Take your time, don't have too much heat, keep your iron if you use one around 700F, do NOT crank it up to as hot as it will go. I have swapped the same flash chip on the PCM when I was having some issues 10+ times and when I am done you can't tell it was ever off the board. Heat and time kill a board, you will lift the pads and your PCM is most likely toast. So spend as absolutely little amount of time on there as possible with the iron. And if you have to let it cool and go back to touch it up, that is better. Take your time. These FR4 boards are tough, but can't be abused at all.

    Quote Originally Posted by 1998ws6 View Post
    Removed the 44 pin header without damage and re installed it into a new PCM, It works on the bench, so now I need to find a car to test it with.

    I am glad I do not do this kind of SMD rework on a daily basis

    Ryan
    The RR's are all the same, 512k or 1MB, there is no difference. I have used mine in several different configs, 512k with a 512k code, 1MB with 512k code (3800's are like this) and 1MB with 1MB code. It doesn't matter. The "difference" is simply what PCM it was installed in.

    It will even work in a 96 V6 PCM with 256k code in it. If I get off my duff, I'll put in my GMT400 454 Burb in the BlackBox PCM, it just needs a custom housing then.
    Last edited by N0DIH; January 6th, 2012 at 04:16 AM.
    I owned a Ford once, ONCE.......

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