*fixed* explain to me why my idle is dying on my fuel inject

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intotherain
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#11 Unread post by intotherain »

Okay here is an analysis of my 45 minute ride.


8:00 PM leave the house
8:00 to 8:20 PM no problems at all
8:20 - 8:23 PM Major problems, RPMS are very jumpy, losing power, hard to control throttle
8:24 PM Open up gas tank for 25 seconds
8:24 PM - 8: 34 PM no problems at all
8:35 PM- 8:40 PM same problems, to a lesser degree than the previous
8:41 PM open up gas tank for 25 secondsl
8:42 to current, no problems



Any ideas?
eyeeatingfish
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#12 Unread post by eyeeatingfish »

Im having the same, or similar problems on my bandit. Check out my post in this same area to see replies about mine. I ahvent solved the problem yet though. If you find out the problem let me know please, we might have the same issue.
2001 Suzuki Bandit 600S, Blue
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#13 Unread post by Tuscon_Dragon »

It might be your Control module . breaking down when the bike is hot, and then running fine after cooling down a bit is the first sign they are goin bad.
Easiest way to check is if you have a friend with the same bike, switch em out and see what happens. :?
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#14 Unread post by thespirit »

Did you run the bike with the gas cap open?
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Sev
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#15 Unread post by Sev »

Tuscon_Dragon wrote:It might be your Control module . breaking down when the bike is hot, and then running fine after cooling down a bit is the first sign they are goin bad.
Easiest way to check is if you have a friend with the same bike, switch em out and see what happens. :?
That's a good way to have two bad ECU's.
Of course I'm generalizing from a single example here, but everyone does that. At least I do.

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#16 Unread post by thespirit »

Sev wrote:
Tuscon_Dragon wrote:It might be your Control module . breaking down when the bike is hot, and then running fine after cooling down a bit is the first sign they are goin bad.
Easiest way to check is if you have a friend with the same bike, switch em out and see what happens. :?
That's a good way to have two bad ECU's.
Especially if there is a short somewhere causing the ECU to crap out.
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flynrider
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#17 Unread post by flynrider »

intotherain wrote:Okay here is an analysis of my 45 minute ride.


8:00 PM leave the house
8:00 to 8:20 PM no problems at all
8:20 - 8:23 PM Major problems, RPMS are very jumpy, losing power, hard to control throttle
8:24 PM Open up gas tank for 25 seconds
8:24 PM - 8: 34 PM no problems at all
8:35 PM- 8:40 PM same problems, to a lesser degree than the previous
8:41 PM open up gas tank for 25 secondsl
8:42 to current, no problems

Any ideas?
So, every time you open the gas tank, the problem clears for about 10 min.? That would be an obvious sign that you have a tank venting problem. Another clue was that in your earlier post, you were having to let the bike sit before it would run again. If you get a vacuum in the tank, it will eventually clear itself if the engine is not trying to draw fuel.
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#18 Unread post by Tuscon_Dragon »

Sev wrote:
Tuscon_Dragon wrote:It might be your Control module . breaking down when the bike is hot, and then running fine after cooling down a bit is the first sign they are goin bad.
Easiest way to check is if you have a friend with the same bike, switch em out and see what happens. :?
That's a good way to have two bad ECU's.
Image

MMM....Kay ............. :laughing: :laughing: :laughing:
eyeeatingfish
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#19 Unread post by eyeeatingfish »

flynrider wrote:
intotherain wrote:Okay here is an analysis of my 45 minute ride.


8:00 PM leave the house
8:00 to 8:20 PM no problems at all
8:20 - 8:23 PM Major problems, RPMS are very jumpy, losing power, hard to control throttle
8:24 PM Open up gas tank for 25 seconds
8:24 PM - 8: 34 PM no problems at all
8:35 PM- 8:40 PM same problems, to a lesser degree than the previous
8:41 PM open up gas tank for 25 secondsl
8:42 to current, no problems

Any ideas?
So, every time you open the gas tank, the problem clears for about 10 min.? That would be an obvious sign that you have a tank venting problem. Another clue was that in your earlier post, you were having to let the bike sit before it would run again. If you get a vacuum in the tank, it will eventually clear itself if the engine is not trying to draw fuel.
I have a very similar problem with my suzuki bandit, except shorter intervals when the problem would surface. It would start when i let the bike sit for 5-10 minutes. I tried running it with the gas tank open at home one day and the bike still stalled.
2001 Suzuki Bandit 600S, Blue
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Sev
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#20 Unread post by Sev »

Tuscon_Dragon wrote:
Sev wrote:
Tuscon_Dragon wrote:It might be your Control module . breaking down when the bike is hot, and then running fine after cooling down a bit is the first sign they are goin bad.
Easiest way to check is if you have a friend with the same bike, switch em out and see what happens. :?
That's a good way to have two bad ECU's.
Image

MMM....Kay ............. :laughing: :laughing: :laughing:
A problem with an ECU is typically caused by one of two things. A short, or overheating.

Either way, if you do not solve the problem before installing a new ECU you will likely write off the second one. If it's due to a short you will write off the second one very fast, if overheating it will take longer.

Make fun of me if you want, but I'm not going to owe my friend $900+ for a new ECU down the road.
Of course I'm generalizing from a single example here, but everyone does that. At least I do.

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