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How To: Remove pins from ECU connector

Joined Jul 2014
1K Posts | 45+
California
I am not sure how many people will need to know this, but maybe it will help someone out there. I didn't find ANY info on the subject.

The wiring harness side ECU connector for the Magnetti Marelli IAW 7SM is marked with part number v23542-C1052-B102 and is TE Connectivity part number 1393450-3
LINK: 1393450-3 TE Connectivity AMP Connectors | Connectors, Interconnects | DigiKey

On the connector, there are four rows of wires labeled 1 to 52. Looking at the end of it, there are two white bars going across the width of the connector. These are locking bars, as this connector has a dual locking method.

In this picture, you can see the top locking bar is slid to the left, in the unlocked position. The bottom bar is slid to the right, locking all of those pins in place.

4Zao5PS.jpg



To remove a pin, locate the row where it is located and ensure the locking bar is in the unlocked position. Get a piece of wire or a metal pin and insert it in the slot to depress the catch hook on the pin. I believe my wire was about .030" diameter. It should have a flat end. Press it in all the way until it stops, about 3/8".

eAcGOFx.jpg



The pin will then pull out by hand on the wire side. As you can see, the white locking bar holds the upper catch hook, and the lower catch hook is released with our pin.

Kh5FonJ.jpg



That's it. The back of each pin has a silicone seal to keep water out.

vr5hwPT.jpg



To reinstall, just press it back into the connector in the right orientation, and slide the locking bar back over.

Kinda random... but yeah. :D
 
I am not sure how many people will need to know this, but maybe it will help someone out there. I didn't find ANY info on the subject.

The wiring harness side ECU connector for the Magnetti Marelli IAW 7SM is marked with part number v23542-C1052-B102 and is TE Connectivity part number 1393450-3
LINK: 1393450-3 TE Connectivity AMP Connectors | Connectors, Interconnects | DigiKey

On the connector, there are four rows of wires labeled 1 to 52. Looking at the end of it, there are two white bars going across the width of the connector. These are locking bars, as this connector has a dual locking method.

In this picture, you can see the top locking bar is slid to the left, in the unlocked position. The bottom bar is slid to the right, locking all of those pins in place.

4Zao5PS.jpg



To remove a pin, locate the row where it is located and ensure the locking bar is in the unlocked position. Get a piece of wire or a metal pin and insert it in the slot to depress the catch hook on the pin. I believe my wire was about .030" diameter. It should have a flat end. Press it in all the way until it stops, about 3/8".

eAcGOFx.jpg



The pin will then pull out by hand on the wire side. As you can see, the white locking bar holds the upper catch hook, and the lower catch hook is released with our pin.

Kh5FonJ.jpg



That's it. The back of each pin has a silicone seal to keep water out.

vr5hwPT.jpg



To reinstall, just press it back into the connector in the right orientation, and slide the locking bar back over.

Kinda random... but yeah. :D
Hey Kuksul08, what ever came of this secret post for the pin removal? I'm fighting through getting jpdiag and Melcodiag to do at home maintenance and what not.
 
Hey Kuksul08, what ever came of this secret post for the pin removal? I'm fighting through getting jpdiag and Melcodiag to do at home maintenance and what not.
I had popped a couple wires out to tap them for RPM and TPS voltage pickups in a professional way :D
 
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I had popped a couple wires out to tap them for RPM and TPS voltage pickups in a professional way :D

I'm guessing you wanted to do this for the Rapidbike evo install? Doesn't the Rapidbike kit normally use Posi-tap connectors for the rpm and tps? I would like to avoid using them and connect them directly to the bikes ecu harness if possible as you did. How do you connect them together?
 
I'm guessing you wanted to do this for the Rapidbike evo install? Doesn't the Rapidbike kit normally use Posi-tap connectors for the rpm and tps? I would like to avoid using them and connect them directly to the bikes ecu harness if possible as you did. How do you connect them together?

I needed to tap TPS, RPM, Throttle grip, and Throttle plate positions for tuning purposes. I also despise posi-tap connectors so what I did was carefully pull each wire out, slice back half of the insulation, and solder a small wire parallel to it, then put heatshrink over the joint. Solder is not ideal for flexible wires due to fatigue but in this location it is tightly wound with the rest of the wire bundle and does not flex. The other way is to use a crimp connector as below, I have seen them used in factory wire harnesses.

Then I installed a single-pole weatherpak connector to allow the Rapidbike to plug in.

Looking back this was all probably overkill because those positap connectors are actually very reliable as long as you secure it properly so it's not bouncing around and fatiguing the joint.

Brass-Wiring-Splice-Crimp-Terminal.jpg
 
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