| Author | Message | ||
     Glitch |
BuckinFubba said:I am of the opion tho that you need the race ecm for all of them. period !! What exactly does the ECM do? What is the difference in the "Race" and "Standard"? I didn't want to hijack the aftermarket exhaust thread. Ain't I nice!  | ||
| Kaese |
I’m no expert, but my understanding is that it is like a preset Power Commander with no adjustments with some self adjusting routines built in. I just put mine on with the Drummer last night, so I really didn’t test to see what the difference is. I also wanted to commend the person that designed the headlamp-mounting fixture on the R. It is really obvious they ran out of room. | ||
| Buckinfubba |
your so sweet... the mapping of the ign curve is different and the fuel delivery is the main thing | ||
| Blake |
Kaese, TPS reset? | ||
| Stot |
Ok lets assume that the fuel delivery curve is good, you just want to enrichen or lean out on the fuel delivery to match a pipe or headwork right? How about Fakeing the O2 sensor by adding some gubbins in between the ECM and O2 Sensor that makes it think youre running leaner/richer than you actually are and the AFV will automatically enrichen or lean out your curve to suit right?? Its not going to be as good as an all points programmable ECU but it could allow you to tweak a wee bit no? Edit- Just done a little bit of reading on this and it looks like to enrichen your mixture a little you need only to lower the voltage recieved from the O2 sensor.. So a Variable resistor of the right Ohms would let you do that but were talking in the tenths of a volt here as O2 sensors work 0-1 volt. Cya Stot edited by Stot on November 15, 2003 | ||
| Kaese |
Have to wait till Tuesday for the TPS reset. Won’t ride the bike till then. | ||
| Kaese |
I have been reading the service manual a little more extensively about the Check Engine Light. It says that it may come on for a previously stored error. Sounds like they may not know why it comes on either. Also, I read that the remapping of the ECM occurs above 5K RPM and at normal operating temp with constant load. I shall try that since it stopped raining here and the sun came out. | ||
| Kaese |
I did about 30 miles between 5000-5500 RPM. Seemed to help it out about 30% more drivability. It seems to backfire a little when decreasing the throttle. Was able to get the front wheel off the ground with my fat rear shifting from 1st to 2nd which it never did before. I increased the idle to 950 from 750 RPM also, which should help the cold starts. The TPS reset should cure all. Can’t wait for Tuesday. Bryan: If 300-3500RPM works for you there, the only thing I can think of is the altitude. I run between sea level and 400-500ft around here. Think that could be a factor? Just a thought. | ||
| Buckinfubba |
well the bikes generally are in the closed loop between 3 and 6k rpm as long as you are at a somewhat constant throttle. If you are opening up the throttle hard and then letting off. It is generally in the open loop which is all preprogrammed and not really using the learned mode. I posted something yesterday or at least I thought I did. Musta hit a wrong button on the puter. Make sure your Idle is at 1050 to 1150 after they reset the tps. It does make a difference. | ||
| Stot |
Just re-read your post there Brian, Just to clarifiy in my head, the learned fuel value applies only when the engine is idle-3000rpm and 6000-redline? so the normal riding range is pre-set absolute no variance set into the ECM? Or is it the other way round.  Cheers Stot | ||
| Usapitbullz |
Speaking of ECMs. I have been told there are 2 types of race ECMs. The factory race ECM, for the street rider, and the true race ECM that is actually a full on race product, does anyone know the correct facts on this? L8R,JM | ||
| Oconnor |
Yep, I heard the same thing. that the full race ecm is programmable but doesn't use the O2 sensor or the temp sensor. So if it got colder or warmer(day vs night etc) you'd be screwed unless you pulled your laptop out and reprogrammed it.. | ||
| Glitch |
JM check this out from HillBilly Bikers. This was new to me until a few moments ago. click | ||
| Buckinfubba |
there is a full race ecm sure...would do you no good on a street bike unless your altittudes, temps ,humidity and so forth stayed pretty constant. It is fully programmable and it cost a crap load of dough and unless you are a racer and can talk real nice to the folks in the buell factory race programn you probably won't get one. stot you confused me there . respectfully I say....what the hell are you saying  | ||
| Stot |
I have no clue. BUT I looked more into it and I learned exactly how the AFV and closed loop system works and now im happy. BTW read up here. http://www.iamw.com/Buellworld/ddfi.htm Cya Stot edited by Stot on November 18, 2003 |
