| Author | Message | ||
     Icarus1125rs |
I've had problems with the bike being lumpy and cutting out [no codes] for a second and then being back on and ok. After three months in the shop HD advised to replace the main harness because two other shop ECMs would not pair with the bike, as part of testing. There is no harnesses available, so some 'earth fraying' was repaired. My bike is under warranty. And my ECM also worked. Apparently, there was some fraying on the earth wire that goes to the cylinder head [I think this is the ECM2 earth and the earth that connects to the Crank Angle Sensor plug]. When I asked the dealer, did you put back the other ECM to prove the fix, the response was "No". Why, because once you put in another ECM into the bike the speedo burns that ECM and it can't be used for another bike. Meaning, their spares become useless for another bike as the shop spare. I asked twice about this. So 'why did you want to put in another ECM' in the first place. Response 'that was what the diags told us to do'. As an ex Avionics Engineer, I don't understand their logic here. If something does not work and you do a repair, the only way to check the repair, is to put back the part that didn't work or showed the problem. I'm concerned that only my ECM only works in the bike. The 'fix' didn't actually 'fix' the bike [still have weird fueling, off throttle behaviour] and if I do put another ECM in, will that work. Does anyone know about this ECM burning? One would think the diagnostic rig allows for clearing of the EPROM. Sound like BS. Appreciate any insights. | ||
| Crustyxpunk |
That's not true, otherwise you wouldn't be able to buy them off eBay and on here and throw them in your bike. That is true for a lot of car ECMs but not not the 1125r ECMs. | ||
| Froggy |
It is 100% true. If the cluster is replaced, it will marry itself with the ECM and copy the mileage and VIN. It works the other way too if your ECM is replaced. It doesn't mean you can't swap components to troubleshoot. | ||
| Zac4mac |
ECMs can be swapped anytime. I have the OEM and an Erik Buell Racing. The IC is the part that has "issues". Long story short, any ECM for the right year/model can be used. A NEW IC will marry to the ECM after a 30 min countdown. A used IC will work but will have VIN info of donor bike. ECM and IC share info via a CAN bus, if that stream is broken, you get a COMM error. Also - There are several programs/apps that allow you to modify ECM data. Erik Buell Racing sells a programmable race ECM with software for around $750. Zack | ||
| Two_seasons |
ECM and cluster do not marry instantly. It takes 30 minutes for them to do a "permanent" handshake. They sync up via the CAN bus instantly, but that is all that happens instantly. Sounds like your dealer doesn't know jack about your problem. | ||
| Craigsmoney |
"It is 100% true. If the cluster is replaced, it will marry itself with the ECM and copy the mileage and VIN. It works the other way too if your ECM is replaced. It doesn't mean you can't swap components to troubleshoot." If this is true, how come when my IC was replaced the odometer started at 0? is there a procedure to marry the ecm and ic? | ||
| Froggy |
Are you running the stock ECM? It should of copied the data off of the ECM after being connected for 30 minutes. | ||
| Crustyxpunk |
Think of it this way, you now have a bike with 0 miles on it  | ||
| Froggy |
I personally wouldn't want people to think my bike is a garage queen | ||
| Crustyxpunk |
I'm talking about resale lol | ||
| Craigsmoney |
it is a double edge sword isn't it. I had over 18000KM's before the fix. Everything is still stock. And while we are on the subject, my bike has the same lumpy running as Icarus1125rs. It is still under warranty until March. I guess I should drop it off over the winter and tell them to find the problem. ha ha, good luck I know. | ||
| Joel9 |
does this happen with the xb's cluster also? copy the mileage & vin? | ||
| Froggy |
No, as the XB does not have a canbus link with the ECM. On 03-07 bikes, the cluster only has input from the ECM for the tachometer and the check engine light. I haven't looked in detail to see what the 08+ bikes do, but it may get speedo readings and some other data from the ECM. The mileage data is stored in the cluster. Being that the 08+ XB use the same ECM as the 1125, they may have the VIN and mileage hard coded into them too, but there is no paring between the cluster and ECM like the 1125.
You bought a Buell and are worried about resale value? The insurance company is the only one I'll ever sell mine too!  | ||
| Rhard |
True that! | ||
| Gemini |
as for using a used ecm from another bike....i would make sure that the security system is turned off on the cluster prior to using the new ecm. the biggest vin issue with the handshake isn't the vin but the pin code for security systems. if your alarm is turned on to the auto on function and you install a used ecm, it will have a different pin in the ecm and the cluster and when you enter a pin in the cluster to disarm the alarm, no go. | ||
| Jaimec |
Wait... does this mean the Erik Buell Racing ECM I pulled out of my 1125R before I traded it in is now useless to anyone else?? | ||
| J_copeland |
It's not useless! I bought one from a guys 08,put it in,did a TPS reset and it works perfectly. No issues at all ! | ||
| Jaimec |
Oh GOOD! I thought I had a very expensive paperweight on my hands after reading this thread! | ||
| Zac4mac |
Jaime - Any of us could use your ECM. Now the IC, that's another issue... I have the OEM ECM and one from Erik Buell Racing. Either work for Loretta, no issues. Z | ||
| Jaimec |
Straight from the horse's mouth:
Got that in response to my E-Mailed question to Erik Buell Racing. I'm good. | ||
| Dirty_john |
When a new ECU is offered to the bike there is a 30 min countdown timer before that ECU is finally paired to that particular IC. After that to the best of my knowledge there is no way of using the ECU with another IC. This 30 min countdown timer is there to allow for the dealer to undertake comparative diagnostics. | ||
| Jaimec |
Dirty_john, see the post just before yours. Yes, you CAN use the ECU with another IC. | ||
| Zac4mac |
30 minute countdown is for a new IC. A new/different ECM has no countdown and never "pairs" like an IC. Z | ||
| Dirty_john |
Thanks Lads I got that a bit wrong way round |
