| Author | Message | ||
     Arry |
I now have a stored code 53, (ECM) ROM failure. I don't have ECM spy or tuner pro, so I'm troubleshooting with the blinking CEL light. I assume this means the ECM has to be replaced..? I've had intermittent issues for quite a while, and had thought about doing the ECM surgery (resolder), but hadn't because I don't have that type of soldering experience. Is it time to order an ECM? Does it come with programming installed? Is it programmed at dealership? I know it would at least need a TPS reset. Anyone in the Portland OR area who's familiar with TPS reset? It's still runs great, but it's issues make it unreliable. | ||
| Fotoguzzi |
what bike and what year? | ||
| Arry |
"07 XB12X | ||
| Fotoguzzi |
I don't have all your answers, others will soon.. but have you relocated the ECM? does your seat touch/smash down on the unit when it flexes under your weight? I think that's the cause of the breakdown at least some times? maybe it will be fine if you do the relocation, that would be lucky.. | ||
| Arry |
I didn't relocate the ECM, but added seat support soon after I bought the bike (it still had low mile when I did this). There's no sign of contact and no cracking where the connectors meet the ECM body, so, I believe, this ECM failure isn't related to seat contact. | ||
| Uly_man |
"so, I believe, this ECM failure isn't related to seat contact". "Sigh" as Another might say. | ||
| Readyxb |
I don't know of any ECM that has been recovered from any of the four ECM failure codes. Not that has been shared, anyway. Every time I have seen one of these posts, I have requested to purchase the failed ECM for analysis, but no one has yet to take me up. I -think- but am not 100% sure that a new ECM has the firmware installed but no calibration, so you would need to download into it the calibration (eeprom) from your current ECM. There is a chance that a new ECM might be of a different type and calibration layout from what was originally shipped on your 2007, though I would expect it to be a "BUEIB". If you buy a used ECM, which is the route I would take, as long as it's for a 2005-2007 XB, you should be fine. For either case, a TPS reset is required after the swap. | ||
| Teeps |
I can confirm that '05 XB12 ecm will work, as I have one in my '06 wiith '07 flash. | ||
| Arry |
I hate to take it in to the dealer, but that is what I've scheduled to do. They have a blank in stock, and I don't have Spy/TunerPro or the cable, or the program to load for my bike. I do OK with mechanical maintenance, but I'm not up to speed with the electronics. | ||
| Firemanjim |
Got one here you can try. | ||
| Arry |
Firemanjim, I appreciate the offer, but I'm on the shop schedule for tomorrow (Friday) morning. I'm kind of resigned to paying up and getting it going. If this takes care of all the intermittent issues it's been having, I'll be satisfied. | ||
| Arry |
I trailered my bike to the HD dealer/shop Friday. When they were done, the guy that worked on it said it was idling a rough, but the new ECM should "learn" (as in adapt/adjust) after a couple of rides. I believe I've heard this "learning" mentioned on this forum, so I accepted it. It starts and idles rough, and after a short ride, and it's warmed up, it idles way high (3000rpm). After a couple of rides it hasn't changed. I'm guessing they didn't get the TPS reset right. ??? I left a message for the service manager, but it's a weekend, so ... My own fault for not getting set up to do ECM interface myself. | ||
| Xbimmer |
Yes I'd guess TPS reset needs another go. You kept your old ECM, right? | ||
| Djohnk |
You might not need a TPS reset, try messing with the idle a little ... its behind the left scoop, I think you need a 1/8" hex. | ||
| Djohnk |
I forgot to mention, don't mess with the idle until its warmed up. Although your probably right about it needing a TPS reset. | ||
| Arry |
I took the Uly back to the HD dealer/shop. They claim to have changed the mapping (maybe just entered the stock mapping, correctly?), and zeroed the TPS (maybe TPS reset wasn't done correctly first time?). It seem to be running right, now. They did the second service call without additional charge, as they didn't have it right the first time, so I feel they did stand behind their work, and I'm happy with that. The new ECM should take care of the intermittent problems I've had for quite a while. It will be great to have confidence in the Uly, again. | ||
| Uly_man |
The bike would have been flashed as the new one is a blank. The bike would not have run at all other wise. The ECM "learning" is just the adjustments made by the AFV via the O2 sensor for local conditions and should not cause any bad running issues. The TPS can be a little tricky to get right and it should idle at 1050 rpm but 1100 is ok. 1500 plus and it is WRONG. It will be a little lumpy even if the engine is hot. The 06 bikes idle uses a cruder system than the later bikes that use a idle air valve as well. The TPS needs to be done right not just for the idle and is VERY important for the running of the engine. The TPS tells the ECM how much air is going into the engine at any given point. If this is not correct the ECM will NOT fuel the engine correctly IE Lean or rich. All the idle cable does is open the butterfly valve to a certain point of choice, in this case about 1050 rpm, and works the same way as it does on a carb engine. And on warmer/ cooler days it can change slightly and while that is less of an issue on a four cly engine it can be on a thumping great air cooled V-Twin. | ||
| Reepicheep |
Excellent! | ||
| Djohnk |
Great write-up Ulyman. Just to be clear, setting the idle and resetting the TPS reset are separate things. Both have to be correct and the bike has to be warmed up when you do it for it to run right. | ||
| Teeps |
Djohnk Posted on Saturday, August 15, 2015 - Great write-up Ulyman. Just to be clear, setting the idle and resetting the TPS reset are separate things. Both have to be correct and the bike has to be warmed up when you do it for it to run right. Yes to both. TPS reset MUST be done first. Preferably with engine at operating temperature. After TPS is reset, then idle speed is adjusted. (Message edited by teeps on August 15, 2015) | ||
| Uly_man |
"Just to be clear, setting the idle and resetting the TPS reset are separate things". Yes this is very true. Thanks Guys. | ||
| Arcticktm |
The dealer saying they "changed the mapping" sounds like either a cover up for what they did wrong the 1st time, or someone who doesn't really know what the tech actually did. No reason any dealer would change the mapping unless they were being paid to create a custom calibration. And even then, it is not something that can be done with normal dealer tools. My money is that they botched the TPS, forgot it completely, or did it under the wrong conditions the first time (cold engine, forgot to back the idle all the way out, something like that). Just be careful with them if you go there in the future, and don't be afraid to ask "dumb" questions. You were right to question the learning mode, as Uly_man already pointed out. |
