| Author | Message | ||
     Johnk3 |
I am really glad I got rid of the TFI. I hope they guy who bought it has better luck. I put the power commander 3 and hi-perf o2 sensor on and loaded a map provided by another member here. The difference was night and day. The hesitation and stumble is completely gone. Bike idles smoother, runs much better and pulls like hell all the way to red line. I am going to start adjusting that map, but it is a great starting point. I would now be willing to invest the time/cost in a dyno tune session. this is what i am running xb9 with force gen 2 pipe, hi-perf o2, k&n, cut 12 airbox if you are interested in the maps let me know. | ||
| Hogs |
Hey Johnk3, Wd, ya have the part number for your p/commander and is that the four wire 02 sensor??? How does it compare to hookup with regards to the TFi that I have now and that you just disconnected?? Simple as ABC ??? | ||
| Johnk3 |
hooks up same as the tfi with the exception of the o2. four wire to pc3 single wire out of pc3 into single wire in the harness. this is the 02 x1 power commander 3 | ||
| Hogs |
ok gotcha, However fill me in I know its a heated sensor but after that does it not read as same as the single wire if at all it does convert back to one wire correct???/I think this is correct four wires meaning one to ground,one to ecm, and the other two just to heat the sensor when its cold or???Just wonder the need for a four wire then ??Perhaps for the ecm to read under a certain rpms?? say 3000 or so??Better for cruising and light loads..Just fishing here?? LoL | ||
| Johnk3 |
I don't know how it all works. I imagine the pc3 gets the readings from the o2 which it then does it's magic on and sends some signal to the ecm to control the fuel curve adjustment. the software when used with the four wire has an option to richen the mixture, really richen the mixture or use the stock curve. I had it at the stock so I am going to begin to play with it now and see what I get. Since I don't know too much about this stuff, I think the dyno will be the easiest and best way to tune this. | ||
| Hogs |
Yup,yup,yup Sounds about right keep me posted as I got one on the way to play with later ...thanks | ||
| Norrisperformance |
How much did ya spend so far?? | ||
| Johnk3 |
tfi....235 power commander....89 o2 sensor....99 i didn't get much for the tfi when i sold it | ||
| Norrisperformance |
You find one used, they cost more than that new don't they?? Any problems ?? Why do people say they want work on the XB??? Even power commander said they want work. I sent em an e-mail before I bought the TFI. I’ve got super good results with the TFI. As do a lot of people I’ve talked to. But you don't have adjustability that you have with a power commander | ||
| Jerseyguy |
I've already got the high perf O2 sensor. Maybe I should try the power commander. I wonder why they donn't support its use on the XBs. Maybe it's just not tested by them. | ||
| Ivershay |
theres a 4 wire o2 sensor on ebay right now - cheap! | ||
| Hogs |
Yeah thats a question I have asked myself there ,why no support... Is the fuel injection system not similar to the Xb`s?? Thought it was??? Ivershay Shhhh Don`t say that too loud!!! Yeah Jerseyguy , I got a p/commander III but have not tried it yet still have the tfi on,And I don`t have a 4 wire 02 sensor yet either though... LoL | ||
| Norrisperformance |
Jerseyguy I've looked at the software. Power Commander is very adjustable. You can even add fuel on decel to get rid of any exhaust popping. Please keep me up to speed, if you get one. Can anybody shine some light on this subject. I'm going to send them another e-mail and ask why they say not to use them on the XB. | ||
| Airbox |
I sold my TFI, couldn't get it to run any better than when I didn't have it and most people seem to have pots 2 and 3 turned off so I couldn't see the point. I am now running stock xb12 ecm, K&N air filter with the snorkel removed and a modified standard pipe ( valve welded open and exit pipe cut inside so it is basically a straight through all 3 pipes and out). This runs great but there is a slight flat spot at about 4000rpm although it pulls like a train above 5000rpm. I am in the process of modifying my own standard 12 exhaust. This retains the exhaust valve and is in principle the same as the stock pipe but is only 40cm long instead of 75cm. The exit is at the back. I don't know what it will be like but hopefully it will give me back the midrange without losing the top yet won't sound like half a VW beetle like the standard one. | ||
| Sweetp411 |
I put my TFI on about a month ago, and wasn't able to get the bike out of the garage to try and fine tune it until this yesterday and today. I don't know if my timing is off, or the bike needs a TPS reset or what, but it's running like total crap now, and I just had the 10,000 mile servicing done by the dealer prior to installing all this stuff? I'm at a loss right now as to what to do? I was thinking I may have a fouled plug, or a plug that's not burning hot enough, or the bikes timing was off, or I had a bad spark plug wire? I really don't know what's up. I guess I could take the TFI off and see how it runs, that would rule out the TFI if it was the problem or not? I have an '03 XB9S w/ a Latus muffler and American Sport Bike open airbox conversion kit and the TFI. I set my pots to 3:15, 7, 4, and 8:15 or so on the last one. When I come to a stop, the RPM's hang at around 2200, I have to leave it in 1st gear and with the brake on, let the clutch out to bring the RPM's down, then it idles at about 1050 RPM's, but it coughs occassionally and sounds like it's going to die. This happens quite a bit. Then when I'm cruising in 5th gear, at about 3500 RPM's, the engine coughs, like the plug is misfiring or something, it sputters, then it will go for awhile, then sputter again. Also at about 4000 to 4250 RPM's, seems like it's not injecting fuel evenly, sounds like's it's struggling to keep fuel in the cylinders, bike sounds really irregular. But once I get the bike up around 4500 and up, it just screams, sounds great and runs great. Getting the low end tuned up is becoming more trouble than it's worth. I'll either take it to a dyno and tune it, or just take the TFI off. (Message edited by sweetp411 on May 15, 2005) | ||
| Lpd22 |
Sweet- I have similar problems with the same settings. in 5th gear my bike will cough on the highway and it does sound irregular around 4000-4250 rpms in the city. my settings are 3:30, 7 , 4 and 8:15. Anyone got any ideas? I dont really want to spend 150$ for a dyno tune. | ||
| Ingemar |
I don't think the guys dumping the tfi dump it AFTER they tuned it on the dyno. Then the maps they got from friends for the PCIII were achieved on a dyno once. No wonder it runs better than a TFI tuned by hand. Most can get away with a PCIII map from someone else but not everyone can. I wonder what would happen if they try to tune PCIII by hand....maybe they will beg for a TFI again... Now if those going that route would throw their bike with TFI on a dyno I don't think it would come to this. I got frustrated too but hung on to it, its running without hick ups right now, but still not perfectly. I need to get it on a dyno to get it right. (Message edited by Ingemar on May 15, 2005) | ||
| Ingemar |
Lpd22, 150 $$ is rediculous. There must be another place to get it done for less. Sweet, Take the TFI off and see how it runs. Whatever is wrong without the TFI installed needs to get fixed first. I read your profile and its unclear if you're running a race ecm. I will presume your not. Reinstall the TFI if the bike is running flawless. Then reinstall the TFI and set the pots to 3, 5, 3, 7. I would strongly suggest NOT to change the 4th pot unless you really know what it does and what the effects are. When you have it like that report back. I (and many others) can guide you through the tuning process. | ||
| 12bolt |
Will the PCIII work with the race ECM? I guess I need to do a little more studying on exactly what a PC can do. | ||
| Johnk3 |
pc3 will work with the race ecm, but the map will need adjustment. Everyone around here can tune a pc3 on the dyno with no problem. I asked 4 shops if they had experience with the tfi. Dobek who? what is that thing? nobody has seen or tuned one of these things before. Its not catching on with the harley crowd or sportbike crowd; they all run the power commander. You may have a point that dyno tuning would yield better results, but if I need if it only adds fuel and I am running rich already... why would I want to use it. I adjusted my map today on the pc3 and changed the o2 to (1) and it runs a little richer (and cooler). yesterday with the stock fuel map setting (0), the bike ran hot - fan came on after a 5 minute trip around the block. I prefer to ride my bike than •••• with it and i was ••••••• with all the time with the tfi. nit fun. | ||
| Sweetp411 |
Ingemar - I'll unplug the TFI and see how the bike is running, I was planning on doing that anyway just to rule out the TFI as the problem. No, I do not have a race ECM, but I noticed on your response that your were not having any of the same problems that myself and lpd22 were experiencing, or if you had experienced them, you didn't mention it. But I'll take the TFI off and see how the bike is running, then I'll try your settings out. | ||
| Typeone |
I've been experimenting very gingerly with the TFI unit, I can understand how it can get frustrating. I suggest reading every post you can to understand what setups required what then attempt a starting point. thats what i did. i've just been listening/feeling the bike as I make gradual changes with the TFI and things seem to be improving. bike is running extremely well, btw. It was clear to me instantly that you can't just dial in someones settings on the TFI and expect a perfect running scoot. For instance, I have 'almost' the exact setup as Odie (drilled vs. removed inner airbox) but his settings made my bike not so happy. As I continually read posts, ride the bike, tweak, ride (75+ miles), tweak again, etc. I'm getting better results. See my profile for the goodies i've got installed. I don't think it means anything but my settings currently are 4, 8, 4:45, 7:30 and the bike feels great. the popping on decel has decreased a tad but not fully and it pulls everywhere as I would expect it to. The plan is to keep tuning until it feels perfect seat-of-the-pants then schedule some dyno time. | ||
| Norrisperformance |
Heres some good dyno proven tfi settings for the 12. Should be a good starting place for the 12. New loud Drummer race ecm, 4,7.5,6,8.25 New loud Drummer stock ecm, 4,8.5,6,8.25 Regular Drummer stock ecm, 4,7,4.5,8.25 Steve says he doesn't need one on his 9 with the race ecm. (Message edited by norrisperformance on May 15, 2005) | ||
| Hogs |
HEy Norris, Thanks I may try your first one even though I`m running the Force can, Right now have just been using 3:30 off off and 7:30 ..Do you think 7:30 or 8:25 makes any difference for the last pot?If so why? | ||
| Norrisperformance |
Fourth pot modifies the o2 sensor signal and sends a false reading to the ecm. At higher settings the bike runs richer. If the fourth pot is set to low the bike will surge at cruise because the ecm is trying to lean things out. Chris you get your gauge working yet??? | ||
| Charlieboy6649 |
I called DynoJet. They said that the PCIII won't work with the XB's because the map is adjusted through the O2 and Temp sensors, not just the O2. So, if you dyno tune your bike, you've tuned it for whatever temp it was running at. The map will change as the engine heats up/cools down. I'm not saying this is right or wrong. I'm saying that is the reason I was given for why they don't make a PCIII for the XB... Make sure your bike is fully heated when you tune it???  | ||
| Hogs |
Hey Mike....Yup I knew about the false reading biz. But didn`t know that a lower setting or higher setting ( 7:30 -8:25) wd. make a difference like that, Hmmm Interesting...I had thought or under the understanding that one just sets it anything above 7:30 or so and it just did its thing to the ecm..( Fooled it )and that was that... Didn`t know their was a range and what it wd. do there Good thanks..I wd. also like to get this TFI unit working RIGHT.!!! Cooll.. oh yeah the gauge air/fuel Well have not been out too late yet at Dark night to give it a blast Daylight too Bright I find it hard to Keeps eye straight ahead and not to watch that 1 inch square LoL Night should be better :-) But Yes and it does seem to be trucking right along so far... | ||
| Hogs |
HEy Charlie..., Thats interesting Hmmm Temp sensors Hmmm... what to do now??? Got to be away. | ||
| Norrisperformance |
If that is true, the bike will change when the outside air temp changes. The air temp sensor is in the air box. That wouldn't be good at all. Guess I'll stay with the TFI. | ||
| Hogs |
Hey Charlie... There are probally 4 or 5 guys around here using em with good results or so I have heard.. Just wondering though.. like to well sort of get all the bugs out before I throw one on LoL |
