IRCM/CCRM details

Discussion in 'Gen 1 & 2 - Electronics & Audio' started by hypnotic, Apr 14, 2007.

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  1. 93rev2sev

    93rev2sev SHO Member

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    How'd it get a J? Computer swap?

    Try to get the oasis report on your car.
    It might be that it had a problem for the first owner that was solved at the dealer under warranty. That repair may have entailed a computer/other parts swap.
     
    Last edited: May 1, 2007
  2. 92inPA

    92inPA SHO Member

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    hypnotic, Your CCRM is only partially working. Actually you only have the low fan speed working. To get the high fan speed you need to use an "M". Since you are in a southern (warmer) state, I would recommend that you get the correct CCRM. M boxes are very common, so you should have no trouble getting one.
     
  3. hypnotic

    hypnotic SHO Member

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    I plan on it, I heard it kick on the other day and wanted to let everyone know, but I guess it doesn't work properly.. just kinda.

    -craig
     
  4. projectSHO89

    projectSHO89 SHOless In St L Staff Member

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    Guys, post troubleshooting situations in the regular forum, not in "stickied" posts.

    This thread should be used primairly for reference.

    Steve
     
  5. 1-5-0 SHO

    1-5-0 SHO SHO Member

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    I have a 93 ATX. Which pin # is the wire that the computer chip sends the signal to ground out in order to open the butterflies at ~4,000 RPM? I want to install a toggle switch so that I can ground out the wire manually and have the butterflies open all the time when I want it versus having to unplug the vacuum line. That way I can switch between getting good gas mileage vs race time.

    My guess is narrowed down to 22 (WOT) but might be also 14 as well. Anyone know?
     
    Last edited: Nov 19, 2007
  6. hawkeye18

    hawkeye18 Sorta cares

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    Here is the PCM pinout for a 93 ATX:

    [​IMG]

    As you can see, you want pin 34. It's light green and pink. Hope this helps!

    OBTW, this is off the computer, not the ICRM...
     
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  7. projectSHO89

    projectSHO89 SHOless In St L Staff Member

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    Since you can't follow instructions, I have locked this thread.

    Start a new thread in the proper place.

    Steve
     
  8. projectSHO89

    projectSHO89 SHOless In St L Staff Member

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    Schematics added

    Attached.

    Click to open pdf file.

    Steve
     

    Attached Files:

    Last edited: Jul 20, 2008
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