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  1. #1
    Join Date
    Nov 2007
    Location
    Windsor, Ontario
    Posts
    73
    Country Flag: Canada

    Default 69 Camaro engine control harness installation location.

    Ok guys I'm at the point of starting the wiring and looking for advice on where to mount things.
    I have the vintage air installed so space under the dash is tight. The AC lines run up between the fender and the wheel tub through were the blower motor was. Also have the dash modified to accept a double din radio where the ash tray was. Plans also involve a console at some point.
    I did install a grommet in the tunnel up close to the firewall (saw this on some DSE builds) in anticipation of future wiring.
    Any tips on where to install the ECM and associated fuse box?
    I have a feeling that I'm going to be loosing my glove box.
    Will I need to add another access through the firewall, and if so where's a good location?

  2. #2
    Join Date
    Sep 2016
    Location
    LA - Lower Alabama
    Posts
    510

    Default

    Depends on the ECM. I'm running the Holley Dominator ECM and it fit under my passenger seat. It's tight, and it's a pain to connect the USB cable, but it's out of the way and not taking up real estate behind my dash.
    Dude are you made of leprechauns? Cause that was awesome!

  3. #3
    Join Date
    Nov 2007
    Location
    Windsor, Ontario
    Posts
    73
    Country Flag: Canada

    Default

    I have the GM ECU and the harness that I purchased with the crate motor

  4. #4
    Join Date
    Aug 2010
    Location
    Los Angeles
    Posts
    682
    Country Flag: United States

    Default

    I'm using a gen 5 console and hid it under the front portion of the console under the dash. Works great and easy access to the port for upgrades or tuning.

  5. #5
    Join Date
    Sep 2016
    Location
    LA - Lower Alabama
    Posts
    510

    Default

    Quote Originally Posted by AB69Z View Post
    I have the GM ECU and the harness that I purchased with the crate motor
    If I remember correctly, those are pretty tall, so it may not fit under the passenger seat.
    Dude are you made of leprechauns? Cause that was awesome!

  6. #6
    Join Date
    Jun 2001
    Location
    Orlando, FL
    Posts
    10,804
    Country Flag: United States

    Default

    They fit nicely on the passenger side inner fender.
    John Parsons



    II Much Fabrication's Blog -- New products, Fabrication sequences, etc.

    II Much Fabrication's Current Build -- LS9-powered 69 Camaro

  7. #7
    Join Date
    Nov 2006
    Location
    Mountain Springs, Texas
    Posts
    2,645
    Country Flag: United States

    Default

    I mounted the fuse block to the core support where the battery was and made a bracket that mounts the ECM up under the passenger fender adjacent to the fuse block. battery is in the trunk.



    Don
    1969 Camaro - LSA 6L90E AME sub/IRS
    1969 Camaro convertible - LS3 4L65E Ridetech Level 2 Tru-Turn - sold
    1959 El Camino
    1969 Mustang Sportsroof
    1956 Cameo - full C5 suspension/drivetrain




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