ECU reflash

[donzo]

I didn't get my stock ecu reflashed, I bought an already reflashed ecu from him and my bike crapped out, was half powered and replaced it with the stock ecu and it was fine again.  i have dyno charts from the reflash but the winter came and i couldn't dyno my bike with the stock ecu, but i think it actually runs better with the stock ecu and my set up (full zards, open airbox, k&n air filter).  i'll dyno it in the spring and see if it outperforms the reflash.  i've not sent back the reflash to monstermash.

[jwoconnor]

ECU arrived today. I won't have time to get out to the shop until later tonight.

[yotogi]

I didn't get my stock ecu reflashed, I bought an already reflashed ecu from him and my bike crapped out, was half powered and replaced it with the stock ecu and it was fine again.  i have dyno charts from the reflash but the winter came and i couldn't dyno my bike with the stock ecu, but i think it actually runs better with the stock ecu and my set up (full zards, open airbox, k&n air filter).  i'll dyno it in the spring and see if it outperforms the reflash.  i've not sent back the reflash to monstermash.

I know that you haven't come out and started bashing on monstermash or his service, but your first post certainly could be read that way. I would be very VERY surprised if you tried to work something out with him and were not able to come to some kind of arrangement.

Although a solid state part like an ECU going bad after 6 weeks? That kinda smacks of an issue with the electronics on the bike which effected the ECU. With very little context to your specific problem, everything I say is speculation though.

[jwoconnor]

Not exactly plug and play it seems. Bike will idle rough for a bit then die unless I hold the throttle slightly open. I'll hook up the laptop tomorrow and reset the TPS and mess with trim. I did unplug the dash and start the bike just to make sure the immobilizer is history. If it wasn't snowing I'd have taken a spin just to run through the gears.

[Duck-Stew]

When an ecu is either new or re-flashed...the preset TPS is set to way-rich.  Re-setting it will likely cure your stalling issue.  Also, be sure to open up the throttle blades and check to see if there is a black line of carbon around where the throttle blade sits @ idle.  If there is, it could be affecting your idle air-flow and it would be best to clean that off before setting the TPS and definitely before you adjust any idle air-bleeds or balance your throttle bodies.

[WetDuc]

So just by plugging in, it won't work to well.
Let us know how it runs after you do the TPS reset.
Question-  You mentioned you can adjust the trim of the ECU, was that a result of the reflash, or did your S2R already have a trim adjustment on the ECU?  My 695 (to the best of my knowledge) does not have any trim setting. 

[Duck-Stew]

So just by plugging in, it won't work to well.
Let us know how it runs after you do the TPS reset.
Question-  You mentioned you can adjust the trim of the ECU, was that a result of the reflash, or did your S2R already have a trim adjustment on the ECU?  My 695 (to the best of my knowledge) does not have any trim setting. 

Trim adjustments are done with software that's external of the bike.  I believe the OP said he had the software.  I have it as well in case anyone's in need of trim adjustment or TPS reset in SoCal...

[yotogi]

So just by plugging in, it won't work to well.
Let us know how it runs after you do the TPS reset.
Question-  You mentioned you can adjust the trim of the ECU, was that a result of the reflash, or did your S2R already have a trim adjustment on the ECU?  My 695 (to the best of my knowledge) does not have any trim setting. 

Stock S2R ECUs have a trim adjustment.

[WetDuc]

Any more news?   I've got to do something about the fueling on my bike.

[TAftonomos]

My experience with ecu's has been the opposite.  All 3 times I've gotten an ECU (DP, or re-flash), it's worked perfectly.  I've heard either it will work right outta the box, or it will run terrible and need to have the TPS reset.

I guess I've just been lucky.

[jwoconnor]

Any more news?   I've got to do something about the fueling on my bike.

I'll try to get out there tomorrow night. I usually don't turn the heat on in the shop unless I'm going to be spending several hours out there.

[jwoconnor]

Hooked up the VDSTS today. Trim was set to -31 so I bumped it to +5 and that seemed to help with idle. I reset the TPS but it was reset to 3.0-3.2 Shouldn't TPS be 4.5-4.9? Max throttle % is 84 now.
Also, the diagnostic shows an open circuit on coil #2. Is coil #2 the vertical cylinder?

[jwoconnor]

OK, as far as TPS goes...
From www.bikeboy.org
"This nominated idle setting is specified as degrees of throttle opening.  For example, the 749 is 1.3 degrees, 999 is 2.3 degrees, 800 is 2.7 degrees, open loop 1000 is 3.0 degrees, and closed loop 1000 is 3.4 degrees.  This figure is not adjustable except at ECU software level, which pretty much means not at all with the 5.9M and 5AM ECU."

So the TPS is good. Yay!

[scott_araujo]

Yeah with the linear TPS reset just tells the ECU, "See what this TPS here looks like right now?  This is closed."  That's why you should snap the throttle shut a few times before you reset.

Also, my CO/idle trim is usually around +10-15 on my bone stock '03 800 Dark.  Diff bike, etc. but they seem to need a little above zero to run smoothly.  Usually set at or near zero from the factory which gives you low emissions but lean pops and the like in the lower rev range.  Mine now runs beautifully smooth even with the stock ECU.

Scott

[WetDuc]

jwo, did you figure everything out?  How's the bike running and how do you like the re-flash?