| Author | Message | ||
     Billy_bee |
I had a cracked ECM in my '06 Uly. I found a used ECM from a 5000-mile XB12 (non-Uly). The two ECM's have different part numbers. All the research I did suggested that the ECM would be plug and play. I plugged it an and it fired right up and idled perfectly. When riding, however, it cuts out completely between idle and about 3500, when it pick up abruptly and runs like a champ to redline. Scary to accelerate in a corner... Any thoughts? I am thinking I really need to do a TPS reset. I have ECM Spy and the cable but cannot find the right driver for the cable. Can anybody help me with that? Thanks, Bill | ||
| Froggy |
The TPS needs to be reset when changing to a new ECM. Regarding your driver, are you running Windows XP or Windows 7? Windows 7 can automatically download the driver, but you need to manually do it for XP, you can get it for both versions here: http://www.ftdichip.com/Drivers/VCP.htm | ||
| Billy_bee |
Hey foggy, Running XP. Only keep a PC around for this and VW VAGCOM. I bet my PC will be obsolete soon enough. I'll look at that site and hope I can figure it our. Many thanks, Bill | ||
| Billy_bee |
OK, I got the computer connected to the bike...the connection is a little unreliable, but I can make it work well enough... Now when I go to make changes to the idle adjustment screw, they don't register on the software. When the throttle is closed, the voltage = 0. After clicking Reset TPS on the Diagnostics page, I still get no changes to the voltage from the tps based on my adjustments. Blip the throttle and ECM Spy responds. But nothing from the TPS when I make adjustments to the idle. Any thoughts? Bill | ||
| Teeps |
Mine usually indicates about 5degs when idle is at 1100rpm. Could have bad TP sensor. But if that was so, the MIL would be on and there should be a DTC stored. | ||
| Ratbuell |
I honestly don't remember ever looking at the V reading when I set my idle...maybe I'm lucky, but I've been able to set it to 1050 or 1100, based on the tach, and never had a rideability issue. Once in a while, depending on the weather, the idle will "hang" on me. I'll decrease it with the adjuster screw - no computer connected - to drop the revs about 50 rpm...and the "hangup" disappears. | ||
| Billy_bee |
Thanks, guys. I am not sure what the abbreviations mean, but I will use ECM Spy to check the codes. The engine light is on and has been for a while since the previous ECM started throwing codes. I looked at the codes yesterday and all I saw was the muffler valve. I'll double check. I am also going to replace the ECM with the cracked one. I can make it work and try the TPS reset with it. I have a sinking feeling that I have the wrong ECM. As I mentioned above, the part numbers are different. The cracked one is Y0152 3ABM 06087. The used replacement is Y0152 3ABM 04348. All my research suggested that they would be interchangeable. Anybody have info on the part numbers? Bill | ||
| Froggy |
Those part numbers are the same, only difference is your old ECM contains data for a 2006 XB12, the replacement has data for a 2004 XB12. Only difference is the airbox, so the fueling is a little different, but they are functionally identical. | ||
| Ratbuell |
The actual "part number" stops with the 3ABM sequence. The last five digits are the program ID code (software version). TP sensor = throttle position sensor MIL = malfunction indicator light (check engine light) DTC = diagnostic trouble code  | ||
| Billy_bee |
Thanks for this info. guys. I'll keep fiddling with it. Still no response in ECM Spy when I adjust the Idle Screw... bb | ||
| Billy_bee |
I decided to take a look into the TB. It was a gummy mess. I cleaned it out, but I have a question. What is the nipple on the side of the TB supposed to do. Should I block that off or find the hose connection that goes to it? I am going to spend a few minutes cleaning/lubricating the cables. Everything is pretty oily.   Looks like the PO bypassed the crankcase vent system. Thanks, Bill | ||
| Billy_bee |
OK. I figured it out. After cleaning (with the throat of the TB in plain view), I hooked the computer up to the bike and attempted a TPS reset. I could see that the throttle plate was not moving when I adjusted the idle screw. Even after cleaning, the plate was still stuck in the TB bore. More cleaning...this time with the throttle open. I had to clean a ridge of goo along the bore and the edge of the plate. Success. The plate opens and closes without any sticktion. And the numbers on ECM Spy worked registered. Finished the TPS reset and took a ride. Runs better than ever! Thanks for your help! bb | ||
| Teeps |
Billy_bee Posted on Wednesday, December 28, 2011 What is the nipple on the side of the TB supposed to do. Should I block that off or find the hose connection that goes to it? It's for a ported vacuum source, used on Ca spec Uly with charcoal canister. My Uly has a hose connected to that port to vacuum the fuel vapors stored in the canister. Leaving it open can allow unfiltered fresh air; so it's best to seal it. |
