DIR Return Create A Forum - Home
---------------------------------------------------------
MT Owners Club
HTML https://mtowners.createaforum.com
---------------------------------------------------------
*****************************************************
DIR Return to: MT-01
*****************************************************
#Post#: 333--------------------------------------------------
ECU Tuning
DIR By: Carson Blocks
Date: June 25, 2018, 12:36 pm
---------------------------------------------------------
Hi, I've got a 2007 MT-01, pretty stock with the exception of a
high flow filter and a decat. I've got a set of DAM pipes on the
way and am starting to wonder about ECU tuning. A lot of the
info on this bike seems to have evaporated, so I'm wondering if
anyone knows about the ECU/O2 sensor and the best path for
tuning A/F. I notice a O2 sensor on the header, is there any
chance this means the bike is closed loop and can adjust fuel
trims? I've heard a little bit of conflicting info on this.
If I have to mod fuel trims myself, is there any way to edit the
actual ECU? I see cables and software for other Yamahas, but the
MT01 being a bit of an oddball, I'm not sure what my chances of
getting a cable meant for another bike to work.
If I have to use a add-on box, I was thinking maybe a Power
Commander V plus autotune. Not sure if I can replace the
existing O2 sensor, or if the bike ECU needs to keep that and
I'd need to weld in a second O2 bung. Any better options I
should be looking at instead?
Thanks in advance. I've been searching but it looks like a lot
of the MT forums have vanished and I haven't found a lot of tech
info on this bike.
#Post#: 334--------------------------------------------------
Re: ECU Tuning
DIR By: Danmt
Date: June 25, 2018, 11:04 pm
---------------------------------------------------------
It most certainly has closed loop. One way of enrichening the
mapped part of the injection schedule could be installing a
Booster Plug. The BP fools the computer to think the ambient
temp is lower than it is and meters out more fuel. Of course it
is designed for a stock bike, maybe yours is too modified for it
to work properly?
I haven't tried the BP myself, but I will.
#Post#: 335--------------------------------------------------
Re: ECU Tuning
DIR By: Nikk
Date: July 1, 2018, 2:10 am
---------------------------------------------------------
There is a German chap, Michael, who does proper reflashes of
standard ecu so that you can remove the dependency on the 02
sensor. It’s basically impossible to tune them without this
being bypassed. On the old site there were hundreds of pages of
discussion!
#Post#: 336--------------------------------------------------
Re: ECU Tuning
DIR By: TimR
Date: July 3, 2018, 5:24 am
---------------------------------------------------------
--- Quote from: Danmt link ---
>
> It most certainly has closed loop. One way of enrichening the
mapped part of the injection schedule could be installing a
Booster Plug. The BP fools the computer to think the ambient
temp is lower than it is and meters out more fuel. Of course it
is designed for a stock bike, maybe yours is too modified for it
to work properly?
> I haven't tried the BP myself, but I will.
>
--- End Quote ---
It doesnt work- save your dough.
Unplug the IAT sensor in the headlight. You get an Engine
light but it enrichens the fueling thinking its -20C !
or
Add the Optimiser ( Dynojet Optimiser for MTO1)
or
Get Michael to flash the ECU properly..!
#Post#: 338--------------------------------------------------
Re: ECU Tuning
DIR By: Danmt
Date: July 4, 2018, 1:06 am
---------------------------------------------------------
in what way doesn't it work? Fooling the ECU to think it is -20
seems a bit drastic to me.
#Post#: 339--------------------------------------------------
Re: ECU Tuning
DIR By: Rocker
Date: July 5, 2018, 4:04 pm
---------------------------------------------------------
As Tim says unplug the temperature sender actually fools the ecu
that it's -30 thus adding more fuel (maybe too much if the air
temp is actually 25) the booster plug I have reads the outside
temp and only cheats the ecu to think it's 10 degrees lower than
the actual temp so richens by not quite so much.
The booster is best for a stock ecu and not really needed for my
moded ecu and pc111 so I may sell it cost £115 would take £60
inc post in the UK it's plug and play fitted in 5 mins
#Post#: 340--------------------------------------------------
Re: ECU Tuning
DIR By: TimR
Date: July 6, 2018, 3:22 am
---------------------------------------------------------
--- Quote from: Danmt link ---
>
> in what way doesn't it work? Fooling the ECU to think it is
-20 seems a bit drastic to me.
--- End Quote ---
The ECU works it out beause it reads O2 gas analysis and
changes the AFR back...!
Booster Plug is a simple resister. Costs maybe five bucks in a
hardware store...Waste of time IMO !
#Post#: 341--------------------------------------------------
Re: ECU Tuning
DIR By: Danmt
Date: July 6, 2018, 8:07 am
---------------------------------------------------------
When the engine is in closed loop, you ar correct. When it isn't
you are wrong. Closed loop only works when load and rpm etc are
more or less constant.
When you nail it it is on the fuel map and that can be changed
(PC) or fooled (BP).
#Post#: 342--------------------------------------------------
Re: ECU Tuning
DIR By: TimR
Date: July 6, 2018, 3:39 pm
---------------------------------------------------------
--- Quote from: Danmt link ---
>
> When the engine is in closed loop, you ar correct. When it
isn't you are wrong. Closed loop only works when load and rpm
etc are more or less constant.
> When you nail it it is on the fuel map and that can be changed
(PC) or fooled (BP).
>
--- End Quote ---
Actually...you are not correct about closed loop...!
It is working between 0-20% throttle openings...and/or
0-3250rpms ( I think!?!) Anyway..load is way too sophisticated
for this ECU. Boosterplug may alter AFR outside closed loop but
you have no idea/control over how much/actual afr. I mean, it
isnt tuning in any real sense of the meaning.. so you might
aswell unplug your IAT sensor.
Or add an Optimiser which successfully enriches closed loop AFR.
Remember, we use this engine in 0-3250rpms (closed loop) ALOT
!! It is a decent solution to lean running engine issues....
The best tuning solution ( maybe if you are in Germany , you
can have issues with O2 sensor absence at testing etc?!) is from
a German. Micheal will reflash your ECU and reload it with a
pretty decent map, tailored to your specific set-up...! I
personally run Stage 3 ECU with PC V and double map made on the
dyno... ;)
Boosterplud is still just a fi'dollar resister from
Walmart...!! ;D
#Post#: 343--------------------------------------------------
Re: ECU Tuning
DIR By: Danmt
Date: July 7, 2018, 1:43 am
---------------------------------------------------------
Well, I will not defend a product I have not used, but the idea
of the BP is to make a stock bike run better and smoother since
many newer bikes are set very lean to pass emissions standards.
The main thing here is wheater it works or not and I cannot say
anything here. My original response was only to alert the TS of
its existence.
Of course it is a resistor, the trick is finding the value of a
resistor thats works optimally. That is what we are paying for
and of course the hardware and the manufacture of the kit. Still
a bit expensive, I admit.
*****************************************************
Page 1 of 3
DIR Next Page