Author Topic: Had a Guhl reflash, just had them put it back to stock  (Read 10687 times)

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Offline PriapismSD

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Re: Had a Guhl reflash, just had them put it back to stock
« Reply #25 on: October 20, 2014, 11:45:53 pm »
Just lifted the tank to confirm secondaries are still there, resisted urge to remove them real quick since would add one more variable...

It always pinged if I used 87 octane when I bought it, so I always run 91.  The couple weeks I had the reflash the weather was in the upper 90s for some of it so I was wondering maybe the poor running was due to the temp, but never did it last year in the heat wave, and never came back after the re-reflash.

I ordered a Fuel Moto PC5 today, will see how much their map will do. If not good enough, then either wideband kit or have a map custom made..
« Last Edit: October 21, 2014, 12:53:43 am by PriapismSD »

Offline mattchewn

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Re: Had a Guhl reflash, just had them put it back to stock
« Reply #26 on: October 20, 2014, 11:50:10 pm »
PSD,
I just got my ECU back from Guhl. My throttle response is phenomenal! Super smooth with no jumpiness at all. The added power is not a bad thing either. Pulls the front wheel up on command now, even at low rpms. I am convinced now that you have some other issue causing you trouble that you need to sort out.
Matt
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Offline Jon

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Re: Had a Guhl reflash, just had them put it back to stock
« Reply #27 on: October 21, 2014, 06:58:55 pm »
Just lifted the tank to confirm secondaries are still there, resisted urge to remove them real quick since would add one more variable...

It always pinged if I used 87 octane when I bought it, so I always run 91.  The couple weeks I had the reflash the weather was in the upper 90s for some of it so I was wondering maybe the poor running was due to the temp, but never did it last year in the heat wave, and never came back after the re-reflash.

I ordered a Fuel Moto PC5 today, will see how much their map will do. If not good enough, then either wideband kit or have a map custom made..

Hey PSD,
If you decide to go with a wideband O2 autotune for the PC5, I have one to sell. Never used, just the box has been opened. If that interests you, let me know.

Jon

Offline smooth_operator

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Re: Had a Guhl reflash, just had them put it back to stock
« Reply #28 on: October 21, 2014, 09:40:05 pm »
Is this really Calboy?  ;D ;D ;D  I've been very pleased with my Guhl reflash
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Offline PriapismSD

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Re: Had a Guhl reflash, just had them put it back to stock
« Reply #29 on: October 22, 2014, 12:12:13 am »


Hey PSD,
If you decide to go with a wideband O2 autotune for the PC5, I have one to sell. Never used, just the box has been opened. If that interests you, let me know.

Jon

I'll put the PC5 on this weekend, let you know if I need it....

Offline Jon

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Re: Had a Guhl reflash, just had them put it back to stock
« Reply #30 on: October 22, 2014, 03:20:14 am »

I'll put the PC5 on this weekend, let you know if I need it....

Good luck! I hope it helps!

Offline jwolffie

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Re: Had a Guhl reflash, just had them put it back to stock
« Reply #31 on: October 25, 2014, 04:51:19 pm »
I am in San Diego too and I have a GUHL reflash on my bike and I love it. Have you checked or changed your spark plugs yet? I am a ASE master tech and I do all of the work on my bike so let me know if you  need help. The dealers in San Diego are clueless on a Concours.

Offline PriapismSD

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Re: Had a Guhl reflash, just had them put it back to stock
« Reply #32 on: November 01, 2014, 03:17:34 pm »
Teh plugs were replaced about 8K ago, and such a bear to get into I am not going to pull them out again without good reason.

The PC5 itself didn't do a lot of difference with the Fuel Moto map, but I have been on vacation this last week since installing it, so no lanesplitting, which is the worst part of the problem.  I also have a map for when i remove the 'flies, so after a week or so of testing it in traffic with the current map, will pull the flies and see what that map does

Offline jdegraff

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Re: Had a Guhl reflash, just had them put it back to stock
« Reply #33 on: November 06, 2014, 07:16:48 pm »
I am on my second C14 and my only complaint has been on/off throttle. It's the first bike I have owned that I had to pay attention to the throttle so much. I initially wrote it off to it being a shaft bike and assumed I would adapt. I stay on top of the cables because that just magnifies the issue. If you figure this out I would be curious to try your fix.

Offline KevinRLI

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Re: Had a Guhl reflash, just had them put it back to stock
« Reply #34 on: November 06, 2014, 07:43:32 pm »
Never an issue with the "On/Off" throttle here. I have a 2012 C14, had the Guhl reflash done. While there taking to Don he did say he only ever had one guy want it reversed. I'm happy with the results. The low end is a noticeable bump in performance. The throttle is responsive IMO. I mean how much should you have to twist to go from zero to 100% throttle? I only twist about a 1/4 turn. Any more and I would be breaking my wrists.
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Offline PriapismSD

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Re: Had a Guhl reflash, just had them put it back to stock
« Reply #35 on: November 18, 2014, 02:47:16 am »
I am on my second C14 and my only complaint has been on/off throttle. It's the first bike I have owned that I had to pay attention to the throttle so much. I initially wrote it off to it being a shaft bike and assumed I would adapt. I stay on top of the cables because that just magnifies the issue. If you figure this out I would be curious to try your fix.

After some testing, the Power Commander V worked best for me.

The map that came installed (Fuel Moto) was pretty good, but the first week I had it installed I was on vacation, so no rush hour lanesplitting, where it manifested the most. I was not willing to go into rush hour traffic on my day off in the name of science.

Then after dicking with it for a few days, I finally got the throttle position calibration done right, as the maps are useless if it doesn't know where you are..

It was a much better improvement for the digital throttle problem, as the reflash did nothing about it. And now it didn't hesitate at 75mph in OD since it cleaned the map up.  In meantime at the beginning I raised the idle another 100rpm and tightened the last mm out of the throttle some more, which did some of the work before playing with the map.

But the maps came with the 0% throttle (idle) setting at 0, so no change up or down at idle until cracked open.  I changed that to +5% from 1000rpm up to around 7K for 0%throttle, and that helped nicely.

Then after a few days of that, I figured more is better, so I changed the map to +10% at 0% throttle, and it was nicer too. I believe this is my go-to setting, and the bike runs the best it ever has.  You can feel driveline lash if you let the engine speed drop to idle slowing while lanepsplitting and then cracking it open again (slipper clutch seems to help but not much at idle), but overall the throttle feel is much better.  It is at least as much improvement as Ivan's FCE did for the FZ-1 (which fixed that one about 85%)

For poops and giggles, I tried it at -5% across the board at 0% throttle, and it was worse.  Rough, did not run right, going leaner at idle was not a good idea. I am back to +10% at idle.

AFter another week or so of running this map, I am going to remove the Tamer throttle tube. It can feel like the shallower ramp at idle gives the impression of reluctance to accelerate when first cracked. I do not expect it have wear on it in less than a year's use, but combined with the PC5, what little effect it did have was a waste of money.

And after I do that for a bit, then I will pull the flies and try again to get back my HP below 4K rpms.  Fuel Moto also gave a map for that setting, but again their default setting is 0% at 0% throttle.  Then I have to decide if I want to have a local dyno shop make a map for me to make it even smoother, or if I want to get the Wideband O2 kit and redo it myself as often as I want...


Everyone seems to love the Guhl reflash, and I have no faith a different shop like ECUunleashed would have any different luck. But on my first-year-model (media bike), lanesplitting in heavy traffic, the reflash did nothing helpful and offered no tune-ability like the PC5.  I recommend it.

Offline jdegraff

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Re: Had a Guhl reflash, just had them put it back to stock
« Reply #36 on: November 18, 2014, 01:00:25 pm »
I have the Area-P full system on mine and am currently running their map. I will take it to Wheeler at Deal's Gap in the spring and let him work his magic. The only time I have the issue is trying to pick the throttle back up smoothly. It is more of an inconvenience than anything else. Not as smooth as I would like.