M796, Serious issues after Re-Flash.

[Pedro-bot]

 

[Langanobob]

I appreciate everyone's attempts to help, but I would really not like this to turn into an argument, ..and please lets not piss off the only ones that can help get these maps straightened out..

+1.   And, we don't want to piss you off either.  This is generally a good group here, wouldn't want you as a  new member to get the wrong impression and not come back. 

[Rxmfn7]

The ECU had arrived back to Mota-lab as of yesterday morning. Anthony said he had forwarded my information to rexxer, so for now I am waiting to here what they have to say.

[Rxmfn7]

I should have the ECU back tomorrow. According to Anthony at Mota-lab, Rexxer didnt find anything wrong with the mapping of my ECU. So... try again tomorrow I guess

[Langanobob]

Aaaargh.  I was afraid of that.  Do you know if they actually installed your ECU on a bike at their shop to see if it worked OK?

And still no luck getting your hands on a stock non-reflashed ECU to see if your bike runs OK with it?

I wonder if it's an electrical or electronic hardware issue?  I'm assuming there is a chip in the ECU that goes to ground for some number of milliseconds when the injectors are supposed to open.   Maybe it's shorted permanently to ground?  There should be a relatively simple way to check this, maybe someone with some electronic background/ECU troubleshooting experience can step up to the plate.

Bob

[Rxmfn7]

I didn't ask, buy I would assume that the ecu was never actually tried on another bike. I wouldn't think they would just have bikes sitting around the shop to try out. But maybe Anthony can chime in. I have an electronics background and I'm sure if I would sit down with schematics I could trace down a possible cause.. But as far as I'm concerned I shouldn't have to, nor do I want to do that. If I'm still having issues tomorrow, the bike is going to the dealer.

[ungeheuer]

I dont wish to offend or piss any sensitive souls off here, but when I earlier asked this:

For Mseven96?

....in response to this:

We've used that exact map 11 times without issue.

What I was attempting to discover was how many of the previously faultless 11 instances of applying that flash to a Siemens ECU were on a M796 ECU? 

And the reason I asked was to rule out this:  Could it be possible that your ECU has perfectly faultless M696 or M1100 flash, one which checks out and tests fine, but is for a machine other than M796?

I should have the ECU back tomorrow. According to Anthony at Mota-lab, Rexxer didnt find anything wrong with the mapping of my ECU. So... try again tomorrow I guess

Having had the ECU examined and tested and having found no issues with the reflashed Rexxer performance mapping, if when you receive the ECU back your problems continue, I would now want the ECU returned to its stock map.

Again, I wish you luck with it 

[Langanobob]

<snip>... I have an electronics background and I'm sure if I would sit down with schematics I could trace down a possible cause.. But as far as I'm concerned I shouldn't have to, nor do I want to do that. If I'm still having issues tomorrow, the bike is going to the dealer.

Here is my 2 cents worth and I agree that you shouldn't have to troubleshoot this problem yourself, but it's far from a perfect world and it always helps to be an educated buyer when dealing with a dealership.  Anything you can do to better understand the possible problem when taking it to the dealer is likely to save you both time and money and possibly prevent another series of frustrations.

[Rxmfn7]

I'm not disagreeing with you whatsoever, but sometimes you need to weigh your options of what the hassle and headache is worth to you. I have highly modified cars that Ive done the majority of work myself. Stripped down to the last nut and bolt, engine swap, etc. I enjoy doing that. When it comes to motorcycles, its just relaxation for me and major maintenance or repairs is not something I want to do. Thats why I purchased a brand new bike, and all I wanted to do to it was make it sound and look like I wanted. The bit of money I would have to pay to just have it fixed and not have to think about it anymore is more than worth it to me.

But back on subject, ECU will be here shortly, and I will update how it goes.

[Langanobob]

Makes perfect sense to me.   Hope today brings good news.

[Rxmfn7]

Just got the ECU in, initial results are good! I just plugged it in and started it up, no more fuel out of the exhaust, it let me rev it as well as hold a steady RPM with no backfiring or stalling. Give me about an hour to get the rest of the bike back together and try and ride it, Ill post final results shortly!

[Rxmfn7]

Well, not sure what they did or didnt do, but so far all seems well. It just started raining pretty good here, but I took her out for about 15min, and didnt notice any issues. Bike seems to run good, no CELs, and no issues I noticed. WIth the louder exhaust its made the "chugging" below 4k rpm much more evident, as you can not only feel it, but hear it now.. but in just the short ride it actually doesnt even seem as bad as stock. I caught myself at like 3krpm a few times and running ok, where previously it would be bucking. So, just wanted to update everyone. Maybe just a corruption in the 1st flash? Seems odd, but whatever. Thanks again to Anthony at Mota-lab for the excellent customer service and communication through this whole ordeal.

[Rxmfn7]

Few quick pics I snapped on my test-ride before the rain hit. Last one beside my friends new HD Rocker-C that Im Bike-sitting.

[ungeheuer]

...Maybe just a corruption in the 1st flash?....

So they reflashed it a second time prior to sending it back to you?

First time it ran like shit, second time it works fine.

Then yup, I'd say something went wrong in the first reflash, just as we thought.

Glad you got it sorted  .

[Langanobob]

Few quick pics I snapped on my test-ride before the rain hit. Last one beside my friends new HD Rocker-C that Im Bike-sitting.

Good looking bike, and it sounds like a case of all's well that ends well.

Bob