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Thread: Dave McKeen idle ECU

  1. #1
    Senior Member SBL's Avatar
    Join Date:  May 2011

    Location:  Treasure Island, FL

    Posts:    102

    My VIN:    10342

    Club(s):   (DCF)

    Dave McKeen idle ECU

    After going through all the usual things to check, I concluded that my idle ECU was bad. I bought Dave's modern idle ECU (the Volvo one) and its like I have another car. Very smooth idle and transition. Plus, you can set your preferred idle speed by DIP switches. Mine ran fine at 775, but I went with 850. There is also a 100 RPM AC bump. But you really don't need it. The response time is quite fast, and so there is virtually immediate compensation for AC, fans, headlights, etc.

    If you need an idle ECU I would recommend this. Of course, it is no substitute for multiple problems such as vacuum leaks, bad ISM, plugs, wires and injectors. Of note, I did some testing and it does have the capacity to compensate for some minor deficiencies, so if you have exhausted yourself trying to make it perfect, this unit could take care of these. The original idle ECUs do go bad, and this product is a stellar addition to replace and/or modernize this often perplexing system.
    Steve Liggett
    Treasure Island, FL
    1982 automatic, VIN 10342, grey int

    Previous: VIN 5983, VIN 3670
    Who knows where my previous 1981 with 6 cylinder Chevy engine is these days (cannot find that VIN) ?

  2. #2
    Senior Member
    Join Date:  Aug 2018

    Location:  Virginia

    Posts:    331

    My VIN:    1623

    I think Iím up to 6 of Daveís solid state relays now. He makes excellent products. I was telling a friend recently how thereís an engineer in Maryland who makes and sells relays for the DeLorean in his spare time. It blew his mind that a low production car is still getting so much attention nearly 40 years later. He was very impressed.

    How lucky we are to have people like Dave.
    DMCF rebuild 2008, Stage II, Eibach

  3. #3
    Senior Member
    Join Date:  Nov 2014

    Location:  Alexandria, VA

    Posts:    207

    ^Ditto
    I also love that it also helps you set your curb idle by indicating when the idle motor is closed.

  4. #4
    Senior Member Josh's Avatar
    Join Date:  Mar 2013

    Location:  SK, Canada

    Posts:    1,896

    My VIN:    11408

    Club(s):   (TXDMC)

    that 100rpm compensation is enough on its own to make the ecu worth it.
    Even with a modern fuel injected computer I fight with this issue.

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