| Author | Message | ||
     Wceviper |
Hello Everyone! So, First things first! I have a 2001 X1 with a Buell Race Kit (No Cams). I bought the bike new and put the kit in after 10k miles. I used everything, Header, Pipe, ECM, and Gutted the airbox. Then I had the TPS reset. Recently the bike has been running very Rich, Thinking it may have been the engine temp sensor trying to cool the engine by dumping more fuel I replaced it,and I replaced the O2 Sensor at the same time, then I put in a fresh set of plugs. After 175 Miles the plugs are starting to get carbon residue again and the bike is running a little sluggish at low RPM (below 3k). I went to pull the ECM trouble Codes and there wasnt any. My next step was to call a dealer and have them hookup a scanalizer to see what the ECM was reporting (Which happens this saturday 07/02/05) and see if there is anything abnormal. I was also told that the TPS sensor may not be set correctly and could be dumping more fuel then needed. At one point I had a power commander on the bike but on advise from HD dealer removed it and had the TPS reset. I was told if I pay to have the bike put on a dyno they will not remap the Race ECM, just diagnose and attemp to fix the issue. I was a little dissapointed. So heres my questions. 1. Has anyone had this issue, any idea what solved it? 2. If I deciede to put the power commander back in, is the performance/cost worth it? Thanks in advance, this site is a great resource. | ||
| Whodom |
I believe a leak in the rear exhaust pipe can cause this. Air gets drawn into the exhaust which the O2 sensor "sees" and interprets as a lean condition. It wouldn't hurt to check for exhaust leaks. | ||
| Denfromphilly |
I think a TPS reset is a good idea, I think the dyno would be a waste of money. You can't remap the race ecm anyway. I think you need to start with the TPS...good luck..Den | ||
| Soundman |
Viper, My x-1 ran rich for so long that I thought it was normal. Then I realized the rear intake manifold-to-head seal was actually folded during assembly. Over time it shrank and the fold allowed air to get in behind the throttle body. I learned later that Buell changed the composition of the seals. Check the seals, it might be your problem. Soundman.... | ||
| Natexlh1000 |
Where is your intake air temp sensor? It's supposed to be in the snorkel tube in the airbox. But you have that gutted..... Mine was gutted when I bought it from Boston H-D. Mine was letting pebbles and grit enter the "clean" chamber. This is the real reason that I installed a forcewinder. Anyways, When they gutted my airbox, they just cable tied the sensor in a random location out of the way! That thing has to be able to sniff the incoming air, not just air at random! Make sure that the air has to get past the sensor to get into the engine. | ||
| Ryker77 |
or just put a carb on the bike and stop chasing wires, sensors, and TPS crap. | ||
| Tramp |
what ryker said. in caps. with feeling. say it with me everyone: "carb" | ||
| Chopperboy |
Have you ohmed out the ETS? I have had two go bad on my S3T, which caused to run excessively rich. I know carry a spare and a slotted socket with me just in case. I think this is a problematic sensor for Buell's. | ||
| Hotrodsportster |
The exhaust leak and ETS sensor are most likely the issues. I have to disagree with Ryker and Tramp on dumping the FI. Won't get that discussion restarted, however, we have four (4) FI bikes from a 99 - 2002 and have not encountered the first issue. FI is the "wave" of the future and offers the ability to tune and set up each cylinder to it best potential. Not being there to hear/feel the bike run, it is hard to trouble shoot, however, the three (3) items, TPS, Exhaust leak, or ETS normally will solve your issue. Food riding, keep the board advised of you progress. | ||
| Hotrodsportster |
You might want to also verify that the Power Commander wiring harness, with it crimp on connectors, did not harm the stock harness. Wet/damp wires, where the power commander crimp on connectors were removed, may also be an issue. Good Riding | ||
| Wceviper |
hello everyone, After taking the bike into the dealership, they reset the AFV (adaptive Fuel Valve). I was told the TPS is out of range by about 2.5 degree's, I plan to get the TPS adjusted, but the bike does seem to be running stronger at low RPM. After I get the TPS reset I will post my progress again. I haven't had a chance to check for an exaust leak yet, but I will do that next week. Thanks for all the help and suggestions, this website really makes a difference in the buell community! -Jason |
