G oog le Buell 1125R Forum | Login/out | Topics | Search | Custodians | Register | Edit Profile


Buell Forum » 1125R Superbike Board » Archives 001 » Archive through May 29, 2009 » Adaptive Fuel Values « Previous Next »

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

Marcodesade
Posted on Friday, May 22, 2009 - 12:45 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I finally went into the diagnostic mode tonight, and discovered my AFV's were 105.0 for the rear and 87.5 for the front. Are these safe and/or normal? If not, what can I do about it? Can I adjust them? How (and to what values)? Or should I have the dealer do it while I have my 6000 mi service tomorrow?

FWIW, my engine is stock except for airbox and solenoid removal (with resistor).
Top of pagePrevious messageNext messageBottom of page Link to this message

Xbswede
Posted on Friday, May 22, 2009 - 01:07 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The 87.5 for the front seems pretty low to me. I would have them look at it. It's low enough that I would wonder whats going on because at that level you are possibly running very lean at WOT as well.

No you cant adjust it without using software A and B along with cable C.
It's all doable though.
Top of pagePrevious messageNext messageBottom of page Link to this message

Marcodesade
Posted on Friday, May 22, 2009 - 01:12 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

And if I were to go looking someday for said hardware and software, what might I expect to end up spending?
Top of pagePrevious messageNext messageBottom of page Link to this message

Xbswede
Posted on Friday, May 22, 2009 - 01:24 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Around $120 -$300 depending on what you choose.

Kind of like a standard and Pro offering.
Top of pagePrevious messageNext messageBottom of page Link to this message

Unibear12r
Posted on Friday, May 22, 2009 - 10:17 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Marco, my bike is in the shop at this moment for throwing a trouble code for this. My bike has dropped the front AFV two summers in a row now once the temps are up. During the cooler part of the year 100F/105R is the norm.
My bike threw the code when the front AFV got down to about 80. Bike was running great. I've been looking/talking around and finding this is happening to other Cali bikes. I believe the front intake is getting a lot of extra fuel from the fumes through the carbon cannister on these hot days. Somewhere around 80F I think you'll get a CEL-P0132 and if your F/R AFVs spread more than 20 points I think you'll get a P1047. I got both last summer and the dealer could never find anything "wrong" with my bike. I think nothing is really wrong, just that BMC didn't realize the effects of really hot temps and porting the cannister to just the one (front) intake. I'll post more when I find out more.
Top of pagePrevious messageNext messageBottom of page Link to this message

Fresnobuell
Posted on Friday, May 22, 2009 - 11:20 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

So the fuel gets dumped into the front cylinder, huh? I never could get an answer on that one....that was an idea tossed around a while ago. Seems very plausible.

BTW Uni, I have a CA bike and had a similar experience with the low front AFV--all the way to the dealer tearing into things and finding nothing abnormal.
Top of pagePrevious messageNext messageBottom of page Link to this message

Fresnobuell
Posted on Friday, May 22, 2009 - 11:22 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

although, I must say my front AFV has never been over 90 for any length of time--my lowest ever recording was 79.5 and it was cold outside...hmmmm
Top of pagePrevious messageNext messageBottom of page Link to this message

Buellhusker
Posted on Monday, May 25, 2009 - 07:51 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I checked my 2009 CR AFV yesterday prior to a 250 mile ride and it was 110.5 for both front & rear. Checked again when returned home and it was still 110.5 front & rear. I had the latest ECM update M3PUS12Z three weeks ago and it helped with the 2K to 4K RPM range of operation but now it has reverted back to the surging and bucking in the 2K to 4K range. I burned through two tanks of fuell and purchased Shell or Conoco premium fuell. I guess I will head back to the dealer to upload the M3PUS12Z program into ECM again. The bike is completly stock other than handle bar change.
Top of pagePrevious messageNext messageBottom of page Link to this message

Marcodesade
Posted on Tuesday, May 26, 2009 - 12:18 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Bike just back from my 6K service. Skip Fordyce was nice enough to give me a COMPLIMENTARY k&n filter with my service (I guess they were out of the stocker). AFV is now 100.0 front, 100.0 rear.
« 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