Ok, so my 2002 M900ie goes in for 18K service. Having MBP collets installed. Mods include open airbox, slipons, K&N, PC3 w/custom map. Same place that did the map, is doing the service. Calls on Sat. yeild the bike isn't ready. Issues with 'cut out' at 3200rpm. The guy what built the map says that at 3200rpm there is a 'blip' or stumble. I've always notice the bike stumble at that RPM range whether is was in 2/3/4 gear. Just thought it was a quirk of the bike. Pulls like a tractor everywhere else. He says he ran the original map - got the blip, zero'd it out - got the blip, created new map - blip, downloaded a map with a bike with just slipons - blip.
Don't know what's going on, but he's working on it today. My thoughts are it must be the stock ECU, yes??
I have no idea what the fuel/air ratio looks like just yet. Haven't seen the dyno runs. Hopefully I'll know more today as the shop is open. Jim said that he was going to try and come in yesterday and work on it.
You might have the shop check the pick-up air-gap. Not sure how sensitive the 2 valves are, but it would be one more thing to eliminate. It's easy to do. Worth a shot.
Ok, so my 2002 M900ie goes in for 18K service. Having MBP collets installed. Mods include open airbox, slipons, K&N, PC3 w/custom map. Same place that did the map, is doing the service. Calls on Sat. yeild the bike isn't ready. Issues with 'cut out' at 3200rpm. The guy what built the map says that at 3200rpm there is a 'blip' or stumble. I've always notice the bike stumble at that RPM range whether is was in 2/3/4 gear. Just thought it was a quirk of the bike. Pulls like a tractor everywhere else. He says he ran the original map - got the blip, zero'd it out - got the blip, created new map - blip, downloaded a map with a bike with just slipons - blip.
Don't know what's going on, but he's working on it today. My thoughts are it must be the stock ECU, yes??
thoughts???
sounds to me like he doesn't know what he is doing, sorry.
REDMS4R - why would you say this?? Have you had experience with this issue before?? PC3, ECU???
i had a pcIII that was the old kind not a usb and had a custom map in that but i don't think that the guy did a very good job with the air/fuel mix. so i sold that and bought a usb PCIII and found a tunner who knew how to use the software.
Never have i heard about a dip or a loss of power in a predictable place that could not be handled properly by a good tuner with a PCIII and a dyno. sounds like they don't know what they are doing. I know the mille and touno has a dip at 5500 but that is a stock bike. I had a shop do a map for me but they didn't have the knowledge to do a good job. So I had this last guy redo my map, and it is perfect. He was a sponsor of a local racer, so talk to anyone who takes their bike to the track or races, and ask them where they go to get tuning done to their bikes. pcIII maps, some suck and some are perfect. Stay away from people who have a hard time with mapping a pc map for you bike.
the pcIII has software that you follow to get the air fuel mixture right, it is not rocket science. it should take about 3 to 6 hours to get it right, maybe longer.
who did the map and where are you located? maybe there is a place to have your bike looked at that i know or heard of.
REDS4R - Foggy123 is right, I did talk with Jim and he spent monday (day off day) working on my bike and talking with DNA. They suggested he replace the ecu with a new one (yes, 1100 clams was the quote). Jim has been the dynotuner at Skagit Powersports in Burlington, WA for the past three years. He just went back to Vegas for additional training this past February. I have spoken with several people, private shop owners and they all feel very confident with this shop as tuners.
Back to the bike. Jim was saying something about readings between the ecu and pc3 being off in just that spot. he says he's smoothed it out now, with just a little 'bliping' (my term not his) at 3100rpm in first gear. He said on the HWY you can't feel anything and he did a ten mile run on it. So, I'm going to pick it up today and see.
I'll talk to him about the air gap ratio. maybe that's something to check into.
had a 40th birthday and a 10th wedding anniversary.....whew......
Ok, Jim spent a TON of time on the dyno with my bike and there is still a little bobble at about 3100-3200, other than that she pulls like a tractor. I'm happy. he said that he could really figure out why it was tweaking, but it is what it is.
I feel confident with the work. Not sure what else to do, the guy came in on his day off and spent two hours and didn't charge me.
I haven't posted here in a while or even visited. BUT, I'm this is my experience with my bike and injection issues. So, I've have some 'stumbling' issues between 2500-3500rmp (didn't matter what gear) for a long time (2+ years). Bike - 2002 M900ie Current setup - slipons, cut boxtop, K&N, pc3 with custom map. As noted in this thread, last summer had a local shop, supposedly know for doing great dynowork, install the PC3 and make a map for my bike. Bike still sputtered, stumbling after apparently being on a dyno for 4 hours to try and 'tune it out'. Calls to DNA yeilded "must be bad ECU - please send 1000 dollars for new one".
In November I stopped by Ducati Seattle and talked to Marty about the problem. He wasn't all that keen on the open airbox idea for injected bikes, also had some concerns about TPS, TB's, gas levels at header. He thought it would good to have a 'once over check' and since I was 1.5 hours north of Seattle said to give him a call when the weather broke and he'd get me in.
So, yesterday was the day and I was able to get in at Ducati Seattle on a last minute call!!!!. Lucky for me, Marty and Robert had just worked on a bone stock '01 M900ie with similar stumbling issues. Turns out the majority of the problem was cam timing (!!!!). So, after they reset my TPS to 150 instead of 190 w/ butterflies closed, syncd the TB's, and she still ran like poo, we decided to open her up to check the cams, and found my cams to be quite off. They had zeroed out the PC3 (with it's custom map (cough cough - btw - after downloading the map there were NEGATIVE numbers in the map in the lower range....NEGATIVE!! taking OUT fuel in an already lean bike??), tuned the tb's to 4.8CO (at the header, not using the 'banana in the tailpipe' sniffer) and the bike ran GREAT. I mean it's NEVER run like this. So freaking smooth I nearly wet myself with delight!!! I brought it back to the shop and while I was paying the bill, Marty took it for a ride. Came back as said 'there's a little stumbling in the 3K area. I could add a few points down low and smooth it out.....if you want.....' DUH!!! So he hooked up the laptop, added a few points of fuel at the 5 and 10% throttle opening and if that didn't even help MORE!! The response is so smooth it's nutty.
What does this mean?? That if you can't tune the stock stuff, why mess with other bits. Over the past 2.5 years I had tried to use the Techlusion box, twice..nothing. Had TWO different dealers try to 'fix it' during 12K and 18K service (one in Vancouver BC and one that has the dynojet) and neither of those dealers EVER thought about cam timing to help with the stumbling issues or tried to check gases at the header. One response was "it's running a little lean, but I can't get the ecu to respond, but it's ok......".
Granted, maybe they didn't know, or think about cams, (and apparently some of the monsters (97-02) have hoorendous cam timing straight from the factory), but I swore to Robert, Marty and Dave R that I will never take my bike anywhere else (as long as Marty is there) but Ducati Seattle. I'll tolerate the 1.5 hour slog down I-5, fighting soccer moms on cellphones putting on make-up and sipping their chai latte (dead serious on this too.....w/my own 2 eyes, could even SMELL the chai....ok, that parts a lie...... ) to have attention and knowledge like the crew there.
So, while a PC3 smoothes stuff out, it ain't always the answer to the problem. Oh, they also installed a new airbox lid, so I'm back to 'stock'. New thought on injected bikes is the in the airbox direct airflow into the velocity stacks, or something. With carb'd bikes it isn't really that critical. Slipons, K&N, PC3 with 'non-dynojet' custom map and an airbox lid.
I've got a 5.9 from a 02' ST4S if that's of any help.
Cheap!
He doesnt need an ECU Marvin, he's simply reporting that if you dont check the basics, then all the aftermarket parts in the world wont fix an ill running motorcycle.
Boy that all sounds very familiar
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[quote=Ducman851;359864]He doesnt need an ECU Marvin, he's simply reporting that if you dont check the basics, then all the aftermarket parts in the world wont fix an ill running motorcycle.
Yeah, the post was long, so I don't blame you for reading all of it. As was mentioned I just wanted to post my 'findings'. Plus, would a 5.9 from a 4v motor work for a 2v motor?? curious.
5.9 ECU issues??
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