What are your ECU Trim Settings

[ChazzyB]

I'm slightly confused about maps. I've seen several people say they've loaded the latest 10173 map but they have bikes that I assume, given their age, are pre-VIN #206547. Danny955i has a 2001 Tiger and has loaded 10173. My Tiger's a 2003 bike (well, I always believed it to be) but has VIN #167127 and map 10121 (TOR).

What's the score?

[metalguru]

Are we getting close now?
Could be your bike was in store for a while at stealers..etc.
So long as you have the 2 connectors on the ecu, give the later map a try,
BUT save your map first.

[ChazzyB]

Are we getting close now?
Could be your bike was in store for a while at stealers..etc.
So long as you have the 2 connectors on the ecu, give the later map a try,
BUT save your map first.

I doubt it was in store for long. The supplying dealer was Carl Rosner.

Alloy wheeled bikes started at VIN #198875. Mine has wire. From what I read, all wire-wheel 955i Tigers are either tune 10120 or 10121. What change happened at VIN #206547?

[metalguru]

I have just compared the two maps and the only alterations visible between 10173 (latest tune) & 10121 (yours) are to 'F' and A/F 1 tables.

[oradbaforpsoft]

Current Setup:

The bike does not smell rich on idle, and it no longer pops when coming down from high-revs at stand-still, so I made the LTFT richer to eliminate the popping and -3 was perfect on the 'blip test'... to get the RPM to drop straight to 1200 flat.

The best part... ABSOLUTELY NO POPPING ON DECELERATION. WHAT-SO-EVER... a little if you're in 1st  from about 3000-2500 rpm... but just a gurgle... not a full on "pop pop blam poof pop" that used to happen.

Danny, what 'non-stock' settings are you using for the af/1 tables from 2000 to 3000 ?

[iansoady]

My readings last time I looked (about a year ago) were:

Adaptive Stepper: -4
Idle Fuel Trim: 0
LTFT: 4.24
ISC Steps: 41
O2 Volts: .134

These readings (warm engine, idling) are from Tuneboy and look quite different from the ones showing from other people - are these from Tuneecu?

I'm running my own map which I adapted from Wayne Macdonald's version so that the A/F is only 14.5 at idle (up to 1400 rpm and no load (well actually 24 as it doesn't go any lower). Lovely map with no hesitation, deviation or repetition from 2,000 rpm all the way up (well as far as 8,000 which is as far as I usually take it).

[Bixxer Bob]

Danny, which of the two maps I sent you are you using? The one dated March (stock latest Triumph tune) or the one dated Feb (one of my lightly modified tunes).

[Tom_Hamburg]

Am I being dim, but how is LTFT adusted or even reset? The element for it is greyed out when I run TuneECU up.

Hi,

it's a bug, will be fixed in the next release.

BR, Tom

[Danny955i]

Danny, which of the two maps I sent you are you using? The one dated March (stock latest Triumph tune) or the one dated Feb (one of my lightly modified tunes).

MAR Triumph Tune, is the one I'm using....

Also.. fixed the cylinder two issue... stupid blue clips like to come undone from the coils. Zip tied them all one... Runs great now! Haha.

OH, updated the info above too... Finally got 40mpg!!

[Danny955i]

Danny, what 'non-stock' settings are you using for the af/1 tables from 2000 to 3000 ?

I'm using the map As-Is... no changes to the 10173Map.hex tables what-so ever, just the LTFT/IFT/IACV trims.

[LTB]

Bike:
2001 955i
TOR Exhaust
K&N Filter
Removed baffle
NGK Platinum plugs
Lambda sensor simulation plug
New TPS

Starting point:
Map 10121
LTFT 5.3%
IACV -5
IFT 0

Now:
Map 10173
LTFT 4.8%
IACV -8
IFT 0

I haven't changed LTFT yet, I just set it at 4.8 as a starting point.
It's already like a new bike !!!
Very little hesitation at low r/m.
It pulls in 4th gear up a steep hill from 1000r/m without a problem.
The biggest issue before was rough running at constant speed around 2-2500r/m
There's still some rough running but much less.
There where some hesitations also at higher r/m but now that's OK.
Idle smoothness needs some tweaking though.

I'm really pleased with the result so far considering all things I tried to get it running OK last year.
Plugs, O2 eliminator, numerous 12 min cycles, removed baffle, checked the coils,
new gaskets around the airbox and finally new TPS that solved the most of the problems
but it wasn't nearly as smooth as now.

[oradbaforpsoft]

Danny, what 'non-stock' settings are you using for the af/1 tables from 2000 to 3000 ?

I'm using the map As-Is... no changes to the 10173Map.hex tables what-so ever, just the LTFT/IFT/IACV trims.

Danny - thanks. Just to confirm:
The af/1 tables are unchanged from the 10173 Map.  Are they the same as Bixer Bob's MAR tune as well?

I still have minor popping on decel dropping from 3000 to about 2600 rpms.

[Danny955i]

That is EXACTLY where I have a bit of minor popping or 'gurgle' in my bike as well... so we're running the identical setup. Haha...

Good to know it's universal.

I'm thinking of making the A/F table richer between 2000-3000 rpm and 50% load to 100% load.

Near as I can tell, engine braking has got to be high load...

It's either that, or slightly increase the LTFT 1 to 2 more values, and then simply increase the AF ratios that are at 14.5 to about 14.7.

I know they say not to do that... but if the LTFT affects all maps, and you're trimming it UP 4 points, isn't anything at 14.5 really 10.5???

I'm not sure exactly... is it a %, or a value?

[Bixxer Bob]

Woa Danny!
first, overrun is NOT high load! Think about it, if you were at the settings you suggest it would be pulling your arms off not slowing down. Overrun is zero throttle position therefore you need work on the throttle closed line.

next, the popping is caused by weak mix not rich, so you need to decrease the af values, not raise them.  While you are in there you can chanve any values in the 14.5 - 14.7 range to 14.4 that will stop the o2 se.sor messing up your lovely new settings.

the reason for popping is a weak mix doesen't burn properly and allows unburnt fuel into the exhaust. not logical I know, but thats how it is.

[ChazzyB]

Idle stepper adjustment: TuneECU 1.8.9 now allows the idle stepper to be adjusted again, but how do you commit the new setting to the ECU? With the engine running, I adjusted mine down from the initial value of 5 to 2. This stopped the slightly high idle held for second after after blipping the throttle, so it just went straight back down to idle. It also seemed to stop of a lot of the popping on the overrun too. However, whenever I restart the bike and run TuneECU, the setting's 7!

Any ideas?