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Discussion Starter · #1 ·
Allright, I have done the ISC adjustment last night. It's at 0.61v and 0.76v.

I have also done the throttle adjustment. I started at 1.5 turn from fully closed on the 3 of them and then only required like 1/8 of a turn on no2 and no3 to perfectly stabilize at around 540. Gave it throttle, let it settle, so on so forth, purrfect.

Now, I still have that surge or hesitation when cruising and the rpm sits right between 4300 and 4500rpm. Whatever gear I'm in, if I hold that rpm steadily, it misses or so it seems. No problem whatsoever when accelerating. I seem to feel it when decelerating though, it's weird.

Here's what I played with in the past 2 weeks.

- Changed the battery (for a second time)
- Replaced the two grounding wires and the red power wire with 4gauge and used soldered on type connections on big flexible noodle 4 gauge amp wiring.
- Removed air box, air filter
- Adjusted throttle bodies
- Checked ISCV adjustment, reset adaptation
- The plugs were changed last year
- I've had 2 different tanks of fuel from two different suppliers

I now remember that initially when I had the air box completely out and did the first TB adjustment, I plugged my MAP or MAF sensor in the wrong connector. I plugged it in the connector that remains empty right below the TBs. The bike would not start. I realised my error, plugged it back in the right location and everything seemed fine. Could I have killed it ?

I have no check engins when the surging happens... and nothing stored either.

Any ideas ?

I asked the question in the other thread I started but I think that one thread per issue is probably a better idea... right ?
 

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Hmm no answers for you just couple questions. When did the problem first occur? Was that the reason you adjusted the time TBs?
 

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Discussion Starter · #3 ·
I did the TBs adjustment last year to fix an abrupt throttle issue. It didn't work because my issue was a throttle cable in need of oil ;)

But, I had closed the TBs too much. So when I started my season, I readjusted the throttle bodies again. The issue has been here day one this year. I have gone through 3 tanks of gas already, so I doubt it's that.
 

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Discussion Starter · #6 ·
Well, I have reflashed map 50563 on my bike and the surging is gone. Weird but it fixed the issue I had !

thanks !
 

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BTW, I had a problem w/ a power drop between 3000 and 3500 rpm. I tried to fiddle w/ the L table with no good results. So I put back the original map and now the power drop is gone. Go figure...

Fred
 

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Discussion Starter · #8 ·
I would almost be tempted to say that there was a corruption in the map/ecu that the reflash corrected.
 

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What I couldn't swear is whether I re-injected the map I read from the bike or the one I got from the TuneECU website. Same ID though.

I may compare the two If I have saved them in a way I can't be mistaking. Not sure.

Fred
 

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Discussion Starter · #10 ·
Funny thing is, the map I had was the 20563 with CLB table in it. I flashed to the original 20563 and it worked again. Reset adaptation, still good.

I then reflashed my map with CLB tables and reset adaptation, problem still solved.

it works again like a charm !
 
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