Author |
Message |
Onespeedpaul
| Posted on Thursday, September 12, 2013 - 05:44 pm: |
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Hi, I'm looking for someone in the New Orleans area with ECMspy and an android device or PC that would be willing to do a TPS reset on my '03 XB9S. I would like to be able to do it myself but ALL my electronics are Apple-based :^D Some background, the bike had sat for an unknown number of years, was missing some parts and the motor was destined to go into a hardtail chopper frame...I bought the whole lot and parted out the chopper stuff and have pieced it back together.... I got it to run today, and it actually runs OK, but it the idle dips from ~1000 down to 600-700 then stalls, also it stumbles in the 2500-3500 rev range....for some reason I have it in my mind it's the TPS...Could be other stuff, and I'm open to suggestions, but the one thing I'm unable to do is ECMspy.... In the meantime, should I get a new TPS from autozone and install it and hope for the best? |
Fotoguzzi
| Posted on Thursday, September 12, 2013 - 08:34 pm: |
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I am so in the same boat.. my world is Mac! I have my MBP partitioned so I can run windows to do TPS on my Guzzi. but it is so slow and cumbersome (windows XP) that I hate using it. If the software was free I would install it but I don't want to spend $75. to be disappointed again. so, I need a new friend in Mpls that can reset my TPS for a couple beers or Latte"LOL. |
Onespeedpaul
| Posted on Thursday, September 12, 2013 - 09:32 pm: |
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That's what I am offering!!! a couple beers and/or lattes....LOL, I don't even have XP... |
Greg_e
| Posted on Thursday, September 12, 2013 - 09:39 pm: |
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Don't install a new TPS until you can properly reset it! That will almost guarantee that you mess up the cycle more than it already is. |
Onespeedpaul
| Posted on Thursday, September 12, 2013 - 09:48 pm: |
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Ahhh, thanks for that! was considering picking one up tomorrow, but i will wait! makes sense... I also would like to add that if I can get somebody to use their ecmspy on it, they would be able to check if it has some other than stock map installed correct? it did have a jardine slip on at one time which i got with it but chose to install the stock muffler since the airbox was missing and I ended up with a stock airbox off flea-bay... |
Onespeedpaul
| Posted on Thursday, September 12, 2013 - 09:50 pm: |
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Also, Also, there is a little brass barb fitting poking upwards from the throttle body, no idea where it goes....anybody care to venture a guess if it may have something to do with the rough idle and stumble? According to my service manual it may have went to a carbon canister but vents to the atmosphere on 49 state bikes?? I'm not entirely sure tho.... |
Greg_e
| Posted on Thursday, September 12, 2013 - 10:18 pm: |
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That hose fitting should be plugged! It will definitely cause idle problems. I eventually ran a tap down into it and locktight a set screw to block it off, the rubber plugs kept rotting and blowing off. It might have been a #4-40 screw, but might have also been a metric screw, been a while since I did that. |
Onespeedpaul
| Posted on Thursday, September 12, 2013 - 11:23 pm: |
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plugged it just now...seemed to make some difference right off the bat, then after a 10min ride, back to the same...idle dips low every 6-10 seconds, and also now when i let off the throttle the revs seems to really slowly go back down...and it's not the cables or the throttle tube causing it, the throttle snaps shut on it's own very easily when the motor is off. any thoughts? back to hunting for a TPS reset? (Message edited by onespeedpaul on September 12, 2013) |
Nh2ms
| Posted on Thursday, September 26, 2013 - 08:55 am: |
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The Buell engine does not idle down quickly when the bike is moving. I read somewhere in an early European review that the engineers programmed the fuel injection that way on purpose. I just got ECMspy working for my bike last night and noticed that there appears to be a setting to turn off that "feature". By the way, I live a couple of hours from New Orleans on the east side of Mississippi. I could possibly meet you halfway, but if I were you I would just buy a cable and find a friend with a PC nearby. |
Onespeedpaul
| Posted on Thursday, September 26, 2013 - 09:24 am: |
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I have the cable, and bought a cheap working PC off craigslist ....what I do know now from the past four days of spending nearly all day either reading about tuning it or actually making small adjustments is that if the idle adjust cable is threaded in too far it will very slowly track back down, but that's because it's flowing more fuel than with it back out a little...no "feature" to turn off in ecmspy.... Now, all this FI diagnosis/tuning has a very steep learning curve...in the ecmspy guide and most tutorials if it were just mentioned about switching ecmspy from standard to professional that would make my searching for answers alot less intensive... Anyways, after resetting the tps a few times, even doing a 'hard reset' and then datalogging tuesday and making some adjustments with VE analyzer in megalog I had it running a tad better, actually had it pulling really good, only slight hesitation in certain rev-ranges, but still had the issue of the idle wandering, where it would be idling fine right around 1050, but then it starts rhythmically dipping to 500-600 and oftentimes stalls... I have new intake seals on the way, but after trying to find leaks with a propane bottle I don't think i'm leaking, but I will change them out anyways when they get here.... the only other thing i can think of to do is to start swapping out all the sensors (tps, o2, head temp, airbox sensor, as well as swapping in the '07 xb9 one-piece throttle body (to eliminate yet another potential leak point) and see where that gets me.... |
Frinzo
| Posted on Thursday, September 26, 2013 - 08:40 pm: |
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I just moved from the new Orleans, last month, I will trying hitting up a buddy that might still be in the area and be able to help, if I was still there I would invite you over, but I had to move. give me a day or so to see if he responds. |
Onespeedpaul
| Posted on Thursday, September 26, 2013 - 11:06 pm: |
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I have the basics down now, but great to meet locals too... |
Onespeedpaul
| Posted on Monday, September 30, 2013 - 07:30 pm: |
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I just wanted to update this thread, Turns out ALL my issues were from the lower hex-head nuts on the intake had loosened up to about hand tight... |
Fotoguzzi
| Posted on Monday, September 30, 2013 - 08:46 pm: |
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thx, new to Buell and I notice the book calls for lock tight in different varieties on almost everything. |
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