| Author | Message | ||
     Lenb |
I fitted a second-hand race muffler for my 2006 XB12R. The bike has WAY more punch than before (with the stock muffler) and I am very happy with the way it runs. Nonetheless I thought it would be a good idea to get a race ecm so I ordered one. After a long wait the race ecm finally arrived and I had the dealer fit it. Problem was the bike would not hold an idle and the dealer could not get it to work. At the dealer's advice I sent the ecm back for exchange and after months of waiting I got a new one. Apparently the race ecms are hard to come by so, to avoid waiting any longer than I already had, I settled on a re-flashed standard ecm. This morning my dealer tried to fit the this reflashed ecm and - no good. They just could not get the bike to idle with it. Very disappointing. Also, the engine light came on and stayed on and the dealer's computer hook-up also threw up a "fault" code. The reflashed ecm obviously cannot be equivalent to a real race ecm. The technicians said that normally they can clear a fault code - but not this one. After they put my stock ecm back on - it idles no problem and runs great. The only thing I could think of is that the problem could be because I am running a stock air filter - but the dealer's technicians don't believe the air filter would make much difference. Might richen the mixture up slightly but that's all. What do you guys think? This is a very frustrating situation for me. | ||
| Lovematt |
If you change ECMs you must get the Throttle Position Sensor (TPS) reset. Although some bikes may idle and even run without doing this, many will not. My bike would idle (but not very smoothly) but as soon as I gave it gas the bike would die right after installing the Race ECM. I got the TPS reset and it was good as new. Get the TPS reset and the static timing checked to make sure it is right and that should do the trick. However I am not sure about the "re-flashed ECM"...depends upon how exactly that was done. (Message edited by lovematt on October 20, 2006) | ||
| Pwnzor |
Your check engine light will remain on until you install a servo emulator with that remapped stock ecm. Go back to the race ecm, if you can. The dealer should know enough to reset the TPS, if not, go somewhere else. Al at American Sport Bike can most likely help you. And another thing, keep your stock ecm handy in case your new one fails. It will retain your TPS setting always. (Message edited by pwnzor on October 20, 2006) | ||
| Lenb |
Thanks guys. The dealer did reset the TPS but the bike would not hold an idle with the "race" ecm. I am pretty annoyed that the (US) supplier of the ecm that talked me into accepting the re-flashed ecm assured me that it would behave exactly like a real race ecm - ie. that the engine check light would not come on. This supplier (who shall remain unnamed for the moment) kept me waiting for months and months only to sell me something that doesn't do what I paid for.  Even assuming it is my air cleaner that is the problem (which I, and the dealer, doubt) I am still going to ask for a refund. | ||
| Buellshiter |
I REPLACE MY ECM WITH THE RACE ONE HAVE A DRUMMER SS AND STOCK AIR FILTER NO PROBLEMS | ||
| Daves |
Heck Len, no need to hide who the dealer was, it is me. I tried to help you the best way I could at the time. I do not think it is the ecm. I also do not think it is the filter. It is not my fault the ecms were on backorder for the length of time that they were. At the time, and I had to pull some strings to even get it done for you, the reflashed ecm was the best option to get you up and running. I thought I was doing what was best for you, instead of keeping you waiting for a replacement ecm. I find it VERY hard to believe that you have received 2 bad ecms in a row. While possible, it is very,very unlikely. I think your dealer is botching the install somehow? | ||
| Khollister |
It really sounds like like the tech doesn't know how to do a TPS reset. The air filter absolutely has nothing to do with this. He does know he has to back off the idle screw to completely close the butterfly, do the TPS reset and then readjust the idle screw so the TPS voltage is about 5.1, and then adjust the idle speed with the bike running & completely warmed up? Dave - if you did what I think you did, care to share how the cells compare between stock & race? :-) After all the discussion, I'm surprised someone hasn't done this before | ||
| Daves |
I did not do it. I "arranged" to have it done to help out a customer. It was not done with Direct Link | ||
| Khollister |
Oh - so much for that idea :-) I guess the "pulling strings" comment should have clued me in. Which brings me back to my question - with all the debate about 06 vs 07 vs Race ECM's, why doesn't someone with DL just suck the maps out and compare them? unlike SERT, I was under the impression DirectLink can save maps from an ECM. I realize there could still be some algorithm differences that do not show up in the data cells, but it would be a start. | ||
| Daves |
Yes, DL will allow you to save maps. The Buell maps are Buell's "property" though and I don't think they would like us sharing info about them? | ||
| Khollister |
Well I could see a likely violation of copyright to give a map to someone, but I do not see where it is a copyright violation to discuss the contents of the map. Use the book analogy - you can discuss content and quote short sections, you just can't reproduce the entire work for distribution. I don't believe there is any violation of US law if an individual who owns multiple ECM's compares the maps via DL and publishes the conclusions as opposed to publishing the entire map. | ||
| Daves |
you are probably correct Keith. Al would probably be the best guy to decipher the differences between the 2? | ||
| 99buellx1 |
Was the bike rode at a constant speed to allow the Race ECM to 'learn' the required settings? If not, re-install, TPS reset, ride bike at constant throttle for 10 minutes, re-adjust idle setting, should be good to go. | ||
| Lenb |
Thanks Dave for replying to this thread. The problem I have is that I have no choice but to believe my dealer when he says he could not make either of the ecms work. In Perth West Australia we only have one Buell dealer and that is Fraser Motorcycles. If we had another dealer - of course I would get a second opinion. That said, I find it hard to believe that Frasers wouldn't know how to set the TPS when they have fitted race kits to many Buells - including my friend's identical 2006 XB12R and own old 2004 XB9R. I would love to try my friend's race ecm in my bike but he works away and won't be back until just before Xmas. In the meantime, Frasers have pointed out that regardless what the problem turns out to be, the re-flashed ecm throws up error codes and lights up the engine check light so it's no good with a race kit muffler anyway. Thus I am seeking a refund from the middle-man in this transaction (here in Australia). btw - I couldn't ride the bike for 10 minutes at a constant throttle because it wouldn't run well enough wih the re-flashed ecm to take it for a ride! (Message edited by lenb on October 20, 2006) | ||
| Jkhawaii |
I know when I accidentally reset my TPS with out zeroing the TB it could not idle. maybe the tech that installed your friends race ECM no longer works there. | ||
| Lenb |
I know when I accidentally reset my TPS with out zeroing the TB it could not idle. maybe the tech that installed your friends race ECM no longer works there. Thanks - but what is the TB? As it happens I have another race ecm on the way. When I receive it - I'll take it, and my friend's race ecm (that I KNOW works) to my dealer and get them to try both. If they can't get either to work then I'll know they don't know what they're doing! I'll keep you posted! | ||
| Khollister |
TB = Throttle Body. He is referring to what I mentioned earlier - the dealer has to back off the idle screw o allow the TB butterfly to completely close before resetting the TPS. |
