| Author | Message | ||
     Smoker |
Some of you saw my last thread about my bike not running with the afv below 150. I did some more investigating and exploring. I believe I've taken care of any leaks that would've caused a lean condition. When I pulled the current maps up on ecmspy, I see some significant differences between the front and rear maps (I'm assuming they should be the same???). Also, the front plug is showing a lean condition, while the rear looks pretty good... I hope I didn't do any damage up front. No signs of major detonation or anything like that. In any case, the fuel map that came with my ecmspy software is in .txt format, while ecmspy is looking for something in .msq format, and I can't figure out how to change one to the other. Any help? I feel like I'm finally close to getting this thing on the road! | ||
| Andymnelson |
Front should be pretty different from the rear, due to the heat difference between the 2 cylinders. I still think you have an intake leak. Do yourself a favor and eliminate that as a possibility. Go buy a can of starting fluid. Get your bike idling, and spray the starting fluid all around the point where your intake manifold mates to the heads. If your idle increases, you have a leak. | ||
| Smoker |
Like I said, I eliminated leaks. And after I posted that, I thought about the fact that they would be different due to temp differences. I'm wondering now if my fuel pump might be the culprit. Nothing about the way it runs seems to be consistent. It never runs really well, but sometimes it's sort of ok, and other times it's absolutely horrible. That still wouldn't explain the front plug reading differently than the rear, though. | ||
| Smoker |
I'm also wondering if I could have a wiring problem somewhere, based in the inconsistencies. I'm almost at the end of my rope with this thing. I'm used to having bikes that I can just jump on and ride... | ||
| Oldog |
OK Smoker, get a hold of Kalali he may have a map to send you for examination. possible problems 1. Air leak around injector orings 2. partially blocked injector 3. wiring issue would IMO would cause the cylinder to cut in and out and is not out of the realm of reason, 4. what type are the plugs, and heat range I have it right rear cylinder is good, front is lean consider trying to swap injectors, see if problem moves check map with good standard map see if any one screwed up the table IIRC the injectors are wired directly to the ecm with only 2 connectors in the line one at the ecm one at the injector head, patience you can test the ecm and injectors with ecm spy | ||
| Kalali |
If you like I can send you the Race maps you can use as a baseline. Or if you have a V&H and Forcewinder I can send you my current maps. The map files are always in the .msq format whereas the EEPROM file could be either .txt or .epr. "Nothing about the way it runs seems to be consistent." But based on what you said, you may (also) have a faulty engine temperature and/or O2 sensor. A poor map usually behaves fairly consistently in the cruise mode. Does your engine temp and air inlet temps match when the motor is cold? | ||
| Smoker |
1. Injector o-rings are new. I guess they could still be leaking, but I doubt it. 2. Partially blocked injector is definitely a possibility, and swapping them front to back is a great idea. 3. I'm hoping it's not a wiring issue, I hate trying to track stuff like that down. 4. Plugs are whatever they gave me at the HD dealership. Is this a problem? | ||
| Oldog |
Good thought Mohsen on the temp sensor, my only thing is that the rear cylinder is "good" front is lean | ||
| Oldog |
plugs could be there is I BELIEVE 6-r10 and the correct 6-R12 some one jump- on this I might be wrong | ||
| Smoker |
Kalali... yes they match. And if you don't mind emailing me some maps, I'd appreciate it. If nothing else, I can compare them to what I've got now, and see where I stand. kylesmoker1@gmail.com thanks! | ||
| Smoker |
One thing I noticed just now is that I seem to have a fresh crack in my header tube close to the O2 sensor... but again, the front cylinder seems to be the problem. | ||
| Blake |
Front is typically the richer running of the two cylinders due to it being cooler than the rear cylinder | ||
| Jramsey |
10R12A for the plugs. A bad o2 sensor will it make it run like a carb'd motor with the choke pulled two thirds the way out because it will not reduce the cold start value 160 down to 100 which is the value when the engine is warmed to normal operating temp. | ||
| Kalali |
Kyle - You have mail. BTW, can you feel any leaks around the cracked area? | ||
| Oldog |
crack by o2 explains some of this issue, the front injector and or fueling is still suspect the 150 afv is likely due to an air leak by the o2 sensor skewing the reading the differences front / rear are some thing else.. |
