EBR ECM failure??

[freight dog]

I didn't notice a huge improvement with my EBR ECM, but my stock ECM actually ran pretty good. I bought the race ECM because I was installing a full system exhaust.

The before dyno showed the bike running quite a bit rich surprisingly, and the thing put down 132+ hp and dammit, with $1600 of FMF exhaust and EBR ECM it put down...132 hp, with a bit less midrange. WTF? The fuel mix was much closer to optimal and my economy has been better (34 mpg before, 38 after), but probably largely because I hesitate to rev the snot out of it in town because of all the noise. The other thing that has me wondering is there is no AFR adjustment going on. It is just 100F/100R all the time.

I imagine I might get better dyno numbers on a colder day. It was 50 degrees out and my AFR's had corrected for this during the ride to the shop for the base run, explaining the rich condition in the dyno room. It was over 70 degrees the day I did the after run, although if the thing isn't correcting, it wouldn't matter.

As far as the low speed fueling goes, mine wasn't bad before, but I would say there has been a small improvement. But unfortunately, I still get a small hesitation getting on the throttle off idle, although not as bad as before, that requires careful clutch slippage when leaned over or just waiting until upright before getting on it, lest the rear step out on me when the power comes in causing bad things...

So for all those who carry on about the perfect fueling, I say bullshit. Or at least, I got a bad tune...

IDK, it is a bit frustrating, but the exhaust looks sweet, sounds beyond badass, drops close to 20 pounds in weight, and was a complete PITA to install, so I will stick with it until the Popo insist otherwise.

 

[boreas]

If you dont find any codes on the IC and all the little stuff is in check (bad fuel,sparkplugs ,vent hoses,intake leaks,temp sensor,cylinder head leaks,fuel pressure,tps sensor,iac,fuel pressure switch,dragging clutch).I wish mine had been an easy fix. Iam still with out my bike in the shop for 11 weeks. Finally after tons of tests ,parts and countless hours a buell tech in wisconsin HD noticed a tps glitch at idle the tps would spike to wide open throttle.Easy fix order new throttle body ,why not everything else has been replaced!Nope put on the throttle body same issue. Now they are f#@$%ing with the harness because it may have been a wire grounding out the whole time between the ecm and the tps,but who knows that may not work.. any ways start with the easy stuff first!

 

[Beckert]

If you dont find any codes on the IC and all the little stuff is in check (bad fuel,sparkplugs ,vent hoses,intake leaks,temp sensor,cylinder head leaks,fuel pressure,tps sensor,iac,fuel pressure switch,dragging clutch).I wish mine had been an easy fix. Iam still with out my bike in the shop for 11 weeks. Finally after tons of tests ,parts and countless hours a buell tech in wisconsin HD noticed a tps glitch at idle the tps would spike to wide open throttle.Easy fix order new throttle body ,why not everything else has been replaced!Nope put on the throttle body same issue. Now they are f#@$%ing with the harness because it may have been a wire grounding out the whole time between the ecm and the tps,but who knows that may not work.. any ways start with the easy stuff first!

How is your bike now? And what were your bikes "symptoms"?

 

[boreas]

^^^ still in the shop!! 13 weeks.. smyptons are easy start bike -stall ...start bike -run for 20 sec stall...start bike again run for 30sec stall ..start bike again and will run maybe. If you try and ride it before this annoying procedure ,it will stall!! Warranty is only good if they can figure out whats wrong.My faith in the actual "tech" and the techs at HD is lone gone.As of right now they have now clue whats wrong with the bike.Waiting for a phone call back from HD headquarters ( again)

 

[hallada]

Interesting to hear how common the sputtering and surge < 4000 RPM issue seems to be with the '08 1125R. Summer of 2010, this was only felt in 1st gear and once into 2nd and beyond, the affliction went away and left me to enjoy my ride. Recently, early August, the trouble reared its ugly head agin but now presents across 1st - 4th gears.

I have assumed that it was a fuel related issue when it became more widespread...appreciate the advice above that had broadened my thinking to plugs which makes sense.

Does anyone have a recommendation for a brand / type and the proper gap for the '08 1125R?

Going to attempt this one myself as the HD dealership already has enough of my $ from a recent front and back tire mount (went with the CTs [up])