2006 GSXR 750

Primo1

Primo1

Member
Hi guys,

I know I'm new here but I'm wondering if there are any other 06 GSXR 750 owners out there that would be willing to help me trouble shoot my ECM.

The bike shuts off when I grab, push or touch the black connector. I thought it was the 34 ground pin, but now I'm not sure.

I don't know anyone with the 06 750 just 1000s. I wanted to plug in another ECM to eliminate that or see if it's the problem before I buy one. MAN 1000$ brand new ?!

Long shot but I don't know what to do....Thanks ahead of time
 
Primo1

Primo1

Member
scootergmc said:
So just to clarify, when you touch the black ecu connector (the wiring harness plug), it dies?
Click to expand...


Correct. I ordered a wire harness from ebay. It gets here on May 12. I plan to splice the connector using butt connectors. I'm going to offset them so they're not all bunched up. I could solder it in there but really don't want to. Butt connectors will be so much faster.

And if I do all that and it still dies I'd be so bummed out....pissed even
 
scootergmc

scootergmc

old and slow
The wiring is exposed into the plug isn't it (no tape)? Give them all individually a good shove into the plug and make sure they're not loose? No cracking or frays/splices in the insulation? Is it possible to disassemble the orange female plug and inspect all the ends?

Has the ECU been out before? Are you the original owner? I've seen folks unplug harnesses by grabbing the wires and yanking instead of working the plug and wiggling. Caused all sorts of problems.
 
Primo1

Primo1

Member
Not original owner. I can tell the previous owner troubleshot this thing. I just found the problem. When I first was riding I was getting lots of stuttering.

I've pulled on each wire with a tweezer and it seems that the ground wire is consistent with shutting the bike off. But so is pushing the connector. Or just moving it .

No frays , nothing jumps out at me when I look at it. The orange connector comes off easy on this. I do see lots of spots where it looks like a probing device may have been used.

I'm willing to bet it's the connector. Just messed up enough to cause some intermittent crap to happen. I want to somehow inspect the pins in the connector somehow. I'll try a sharp tip with the DVM and check the ground pin
 

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DannoXYZ

DannoXYZ

Well-known member
Try to isolate it to single wire and repair just that one. Once you've isolated to one wire, change where you wiggle to find break. Don't go blindly in with shotgun and butt-crimping in another connector, you've just introduced +30 additional possible failure points.

Look up how to disassemble that connector to remove and replace just one wire and terminal-pin. Terminal could be loose or damaged due to someone yanking on wire trying to remove rather than unlocking with proper tool.

DO NOT crimp-on butt-splices! It will fail in future! Use proper lineman's splice. Every electrical repair joint must be tied, soldered and sealed. It's done this way in pro-motorsports, aerospace and military applications for performance, durability and reliability. Be sure to slide adhesive heat-shrink tubing over before joining. Do it right 1st time around, because there's ALWAYS time to do it again if you don't. Imagine going through what you're doing now, not with just one, but with +30 wires!!!


youtu.be/O-ymw7d_nYo

Good source for connectors & terminals.

https://www.corsa-technic.com/
http://www.cycleterminal.com/motorcycle-connectors.html
 
Last edited:
Primo1

Primo1

Member
DannoXYZ said:
Try to isolate it to single wire and repair just that one. Once you've isolated to one wire, change where you wiggle to find break. Don't go blindly in with shotgun and butt-crimping in another connector, you've just introduced +30 additional possible failure points.

Look up how to disassemble that connector to remove and replace just one wire and terminal-pin. Terminal could be loose or damaged due to someone yanking on wire trying to remove rather than unlocking with proper tool.

DO NOT crimp-on butt-splices! It will fail in future! Use proper lineman's splice. Every electrical repair joint must be tied, soldered and sealed. It's done this way in pro-motorsports, aerospace and military applications for performance, durability and reliability. Be sure to slide adhesive heat-shrink tubing over before joining. Do it right 1st time around, because there's ALWAYS time to do it again if you don't. Imagine going through what you're doing now, not with just one, but with +30 wires!!!


youtu.be/https://www.youtube.com/watch?v=O-ymw7d_nYo

Good source for connectors & terminals.

https://www.corsa-technic.com/
http://www.cycleterminal.com/motorcycle-connectors.html
Click to expand...

Ya I don't really want to splice +30 wires. I hope the one wire I pin pointed is the one. I'll try the one wire method and see if I can secure it well.
 
DannoXYZ

DannoXYZ

Well-known member
Also unplug the connector from ECU box and look at it from other side with strong light and magnifying glass.

- Are all terminals inserted at same depth and are all centered?
- look down center of each terminal, is spring-finger in proper location for contact? Not hogged out or mangled?
- Pull gently on each wire, terminals should stay put.
- inspect all terminal-pins of ECU. Are they all solid and centered?
 
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Primo1

Primo1

Member
I think I may have got it. I tried taking pin 34 out. But I couldn't manage to depress the tab on the mini socket. I ended up finding pictures for another GSXR in some other forum.

I did adjust the pins in the socket however. I did notice some where more pushed up than some. Plugged it in and finger worked it good! Wife said it look like i was fingering a p*ssy. TO FUNNY.

Cleaned it up with denatured alcohol to. Seems real solid now. Just barely touching the connector before would shut the bike off. Now nothing did.

crossing my fingers
 
scootergmc

scootergmc

old and slow
So you were able to get the orange cover off and check it all out? Sweet. Sounds like someone yanked and hamfisted it in the past. Glad it's sorted. A can of QD electrical contact cleaner is also handy for situations like this (and a thousand others).
 
Primo1

Primo1

Member
scootergmc said:
So you were able to get the orange cover off and check it all out? Sweet. Sounds like someone yanked and hamfisted it in the past. Glad it's sorted. A can of QD electrical contact cleaner is also handy for situations like this (and a thousand others).
Click to expand...

The orange piece on mine is just a plastic cover. On the back it's just some plastic cover as well. Removed the moisture guard and was able to make the pin solid again.

Once I get a spare connector I'll practice taking the pins out correctly. See if I can swap connectors. In the meantime so far so good. And ya I believe there was a bit of hamfisting amount other things 😂
 
DannoXYZ

DannoXYZ

Well-known member
Well, you might have fixed it already. Don't temp fate...

Test how solid a fix it was by pulling and wiggling wires when bike is running. If it doesn't cut out, just leave it.
 
Primo1

Primo1

Member
DannoXYZ said:
Well, you might have fixed it already. Don't temp fate...

Test how solid a fix it was by pulling and wiggling wires when bike is running. If it doesn't cut out, just leave it.
Click to expand...

I think I'll leave it as is . I pulled and tugged and it's good. Went for one of the best rides today. Man this animal is only giving me 71MPG till the light comes on.

I guess F**k gas
 
Primo1

Primo1

Member
scootergmc said:
71 mile range from full to light? Something doesn't seem right.
Click to expand...

Right. Someone told maybe the floater isn't set right. I hear gas sloshing when the light comes on. 2.3-2.4 gallons when I fill at that point. I think I have a 4.3 gal tank.

So that's only 1.5 + 2.3 = 3.8 gal LOL it's Saturday though . Homework is over 😂
 
B

bobl

Well-known member
Forget miles to light, miles to your favorite pub, etc. Zero you trip meter, fill the tank, ride, the fill the tank again. Number of miles divided by the number of gallons will tell you you gas mileage. The rest means nothing.
 
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