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360 Engine ECU Connector Question

Discussion in 'Technical Q&A' started by Jqureshi, Dec 9, 2023.

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  1. Jqureshi

    Jqureshi Rookie

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    #1 Jqureshi, Dec 9, 2023
    Last edited: Dec 9, 2023
    Hello all,

    First post and first attempt to wrench on the mechanicals on my 360 after 6+ years of ownership.

    I'm sending my passenger ECU to Cambio Manuale to begin the process for a manual conversion. I've had my F1 with the CS TCU now since I've owned the car and have loved it; but I just feel I'll drive the car more once converted.

    My question is how do you separate the connector from the ECU (I just don't want to break the connector or ECU)? Fiddling with it I figured out that the silver lever (see image) lifts up and that releases the grip to the ECU. But how high do you lift it since it seems to stop after about 1 cm of travel? How much force does it take to separate the connector from the ECU?

    Any help or advice would be greatly appreciated!

    Also while I was doing this I found a rogue connector just sitting there not connected to anything (see image). Can someone let me know if I need to be concerned :) Car ran just fine this evening before starting this. Thanks again.

    Joe


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  2. Qavion

    Qavion F1 World Champ
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    #2 Qavion, Dec 9, 2023
    I don't know if this picture helps...

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    You can see the removed plug on the right of the photo. Some fore-aft pulling motion is required (as well as lifting) if I remember correctly.

    The only unused connectors I can think of would be the Secondary Air Solenoid valve (which is not fitted to non-USA cars) or the fuel (tank) pressure sensor (not fitted on later cars, I believe). I don't know where you're from or the year of your car. How many pins does the unidentified connector have?
     
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  3. Jqureshi

    Jqureshi Rookie

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    #3 Jqureshi, Dec 9, 2023
    Hi

    Your picture helped immensely. I looked at your picture and went back out to the car and and slowly worked the lever back and forth and it finally released to 90 degrees like in your picture.

    I really appreciate your help.

    The "rogue" connector has 2 wires. The car is a 99 US spec Modena. I looked around again and didn't see anything it plugs into. I'll look around more closely in the morning for anything I'm missing regarding where it connects.

    Thanks.

    Joe
     
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  4. Qavion

    Qavion F1 World Champ
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    #4 Qavion, Dec 9, 2023
    You're not the only one who was puzzled by this spare plug

    https://www.ferrarichat.com/forum/posts/149375887/
     
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  5. Jqureshi

    Jqureshi Rookie

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    #5 Jqureshi, Dec 9, 2023
    Lol. Ok thanks again. I won’t be looking for where it connects in the morning
     
  6. RedNeck

    RedNeck F1 World Champ
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    #6 RedNeck, Dec 10, 2023
    Almost every new 360 owner that DIY's posts about that plug, including me years ago. It doesn't go anywhere, Ferrari just puts it in there so people bring their cars to the shop to see where it goes.
     
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  7. Jqureshi

    Jqureshi Rookie

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    #7 Jqureshi, Dec 10, 2023
    I can see how the initial paranoia of working on these cars can lead to that end point of giving the dealerships a reassurance tribute. Glad this forum exists!

    Thanks again.
     
  8. Jqureshi

    Jqureshi Rookie

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    #8 Jqureshi, Dec 10, 2023
    This probably will go into the bin of "duh" and is probably already on the forum somewhere multiple times (I need to learn how to effectively search old threads).

    When removing the Engine ECU connector, what I found made it really easy with no significant forces on an expensive part was:

    To simultaneously push down on the molded retaining tab with my fingers (yellow arrow in my first pic) to free and lift the silver connector lock bar (red arrow in first pic).

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    And then while continuing to put minimal upward pressure on the silver connector lock bar, reach a finger around and push inward on BOTH plastic tabs that jut out of the front of the connector (green arrows pic 2).

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    The forces used are very minimal and then the lock bar for me at least just flopped over to the completely open position (picture 3, orange arrow).

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    You don't really need to try to separate the connector from the ECU, it will be essentially loose at this point and is free.

    Hope this helps and I wasn't too redundant on common knowledge.

    Joe
     
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