G oog le BadWeB | Login/out | Topics | Search | Custodians | Register | Edit Profile


Buell Forum » XBoard » Archive through July 22, 2014 » Xb12x seemingly random engine problem « Previous Next »

Author Message
Top of pagePrevious messageNext messageBottom of page Link to this message

Loud_and_low
Posted on Friday, May 30, 2014 - 06:26 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

06 Uly,about 44k miles.
Stock engine. Well maintained bike.

I started having this problem when riding out to Austin TX for MotoGP this spring.Got home, and sorta forgot about it. I only use this bike for long rides. I rode it again on a 1500 mi trip the last few days,I remembered real quickly that it had a problem.

At freeway speeds plus, the engine light blinks and engine bogs down/misses,power dies. Dump the throttle once or twice and the light stops blinking, throttle restored. Can happen under any load, at any speed ranging from about 65 and up. Seems independent of any particular speed, engine load, road conditions. I cant really place a reason for it. it just seems random. Been going on for about 3k miles. Bike never dies, and always responds to dumping the throttle.

I cant be bothered with traveling under 65. I have no reason to not ride the bike, and have faith it will always correct with a throttle dump..but at freeway speeds of 75 plus, a throttle dump can be a bit precarious in high speed traffic.
I have a big trek through Canada coming up in July and am at wits end.
Any ideas?

Thanks in advance,
Mark
Top of pagePrevious messageNext messageBottom of page Link to this message

Natexlh1000
Posted on Friday, May 30, 2014 - 08:16 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Sounds like the computer thinks the engine is overheating.

The question now would be:
Is it actually overheating or is the engine temp sensor lying?

You need to hook up with ECMspy and ask that little computer some questions.
Top of pagePrevious messageNext messageBottom of page Link to this message

Loud_and_low
Posted on Friday, May 30, 2014 - 10:02 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Well, I have a cable which I bought years ago, but has went unused. I misplaced the program somewhere along the way. I am sure there is much information on the forum about procuring a copy and using it, so I wont complicate this thread with that.

I'll try to get it going, but honestly don't even know where to begin with such technology. I bought Buells because I thought they were simple. Me caveman.
Top of pagePrevious messageNext messageBottom of page Link to this message

Greg_e
Posted on Friday, May 30, 2014 - 10:17 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Dirty tps potentiometer is my guess since rolling the throttle across the cruising spot gets it to clear. There is a duralast part number floating around the forum for Auto zone that might be worth a try for the $20 it will cost you. You will need to reset the tps with your cable and either tunerpro or ecmspy.
Top of pagePrevious messageNext messageBottom of page Link to this message

Mlink
Posted on Saturday, May 31, 2014 - 10:02 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Check your battery connections, and then check your battery. If it's below a good charge your ECM is getting bad signals.
Top of pagePrevious messageNext messageBottom of page Link to this message

Teeps
Posted on Saturday, May 31, 2014 - 12:01 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

cracked ECM terminals are most likely the cause, after you eliminate:
battery
ground terminations
connector pin fit

If the above prove inconclusive, then the Engine Temp Senor would be next in line.

See this thread: http://www.badweatherbikers.com/buell/messages/142 838/726411.html?1334338510

The photos in the original post are mia; but the remaining ones show the problem.
Top of pagePrevious messageNext messageBottom of page Link to this message

Loud_and_low
Posted on Friday, June 06, 2014 - 09:39 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks for the info one and all.
Battery is new, checks good. Charging is good.
Grounding is good when checked with a meter.

Greg's idea of the TPS Pot is interesting and seems logical, I'll pay attention here.
Teeps, thats a good read, and yes it does seem in the realm of my problem. Connectors seem ok to me, but again, I'll pay close attention to this.
I have my cable, and downloaded version of ecmspy, I plan to hook it up and see what I can learn with that.I assume I can plug it in, and if I can ride it and get the fault to happen while hooked up to my laptop, I'll be able to narrow down or pinpoint the fault?

THX AGAIN!
Mark
Top of pagePrevious messageNext messageBottom of page Link to this message

Dwilson357
Posted on Saturday, June 07, 2014 - 07:50 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I think to do what you want you may want TunerProRT. Its free just download the premium version the only difference between that and "unlocked" copy are a 10 sec. wait screen when you open the program. Tuner Pro can datalog...I haven't used ECMspy so I do not know that it can datalog.
« Previous Next »

Add Your Message Here
Post:
Bold text Italics Underline Create a hyperlink Insert a clipart image

Username: Posting Information:
This is a public posting area. Enter your username and password if you have an account. Otherwise, enter your full name as your username and leave the password blank. Your e-mail address is optional.
Password:
E-mail:
Options: Post as "Anonymous" (Valid reason required. Abusers will be exposed. If unsure, ask.)
Enable HTML code in message
Automatically activate URLs in message
Action:

Topics | Last Day | Tree View | Search | User List | Help/Instructions | Rules | Program Credits Administration