Go
back to my 2006 FZ1 main page
ECU PREPARATION
(This will save you time when your ECU arrives so you will be "Plug in and go")
It doesn't matter "when" you do this as long as it's done before you start using the bike.
I SUGGEST THAT YOU READ THIS IN DETAIL SO YOU CAN UNDERSTAND WHY IT NEEDS TO BE DONE !!
YOUR ECU'S PART # IS LISTED ON IT AS SHOWN IN THE PHOTOS BELOW:
THE REASON THAT YOU MUST DO THIS IS BECAUSE THESE SETTINGS CANNOT BE ACCESSED BY ME.
THEY CAN ONLY BE ACCESSED AND CHANGED THROUGH THE DASHBOARD ON YOUR BIKE.
("Co" values are stored in the ECU.... Not the dashboard, but cannot accessed through reprogramming)
Yamaha FZ1 2006-2010
For all 3C3 ECU's (2006-2010)3C3-30 - 2006
3C3-40 - 2007
3C3-41 - 2007
3C3-50 - 2008
3C3-60 - 2009
3C3-70 - 2010
Yamaha was making ECU fueling adjustments each year during this time period and made adjustments to this bike's "Co" settings until 2011.
If you don't do these steps, your bike will run rich or lean after I flash your ECU depending on what the "Co" values are on each cylinder.
Performance, driveability and fuel mileage will suffer.
Before installing your newly reprogrammed ECU, the very first thing that needs to be done is enable access to the "Co" mode.
This is simply to remove a wire in your tip-over sensor connector and ground it so you can access these settings, and make them all "0"
This procedure only takes about 5 minutes after you access and ground the above mentioned wire.
You can do this before or after you send the ECU to me as long as it's done before you ride your bike.
(Instructions for this are shown below)
Yamaha FZ1 2011-2015
For 3C3-80 ECU (USA and Canada 2011-2015)
"Co" settings are set to "0" from the factory, however if you are not the original owner of the 3C3-80 ECU that you are using,
then it is necessary to do this as well to make sure that they are in fact set to "0" because someone may have changed them.
TO ENABLE "Co" MODE ON ALL USA & CANADA MODELS 2006-2015
1) Unplug the connector from TIP-OVER SENSOR.
2) Lift the "pin lock latch" and remove the light green wire from connector.
Attach a length of wire and connect it to any good ground (battery negative or frame works well)
This will allow access to the Co settings whenever it is grounded.
(You may choose to leave it permanently attached to ground)
3) Re-connect and re-install the sensor - the bike won't run without it.
See instructions & photos below
Wire to be accessed is in the tipover sensor connector.
The tip-over sensor is located between the rider and passenger seat.
Remove tool kit, then remove the 2 allen screws holding sensor in place, lift the connector release latch and unplug it.
Temporarily set the sensor to the side.
The wire to be removed from the connector is light green as shown above.
Next you will need to GENTLY depress the "pin latch" away from the terminal with a sewing needle or mechanic's pick.
Then GENTLY slide the light green wire out of the back of the connector.
Either permanently or temporarily attach the wire to ground on the bike so you can access the CO mode
(permanently would be so you can access these settings at any time)
Reconnect the connector to the tip-over sensor, and reinstall the sensor !!
____________________________________________________________________________________________________________________________
CHANGING THE "Co" SETTINGS
1) First press both dash buttons and hold simultaneously....
Then turn the ignition key on while keeping both buttons depressed.
Hold the buttons until "d1" is shown on dash.
(This takes about 5-10 seconds)
2) Then press the right button once and release it….. "Co" will be displayed.
At this point, I would encourage you to write down the settings for each cylinder before you change them....
just in case you ever may want to return to stock (requires stock ecu flash to use the stock Co settings)
3) Press both buttons simultaneously again until "Co1" is displayed and release the buttons.
4) There are 4 "Co" values (1 for each cylinder) Co1, Co2, Co3, Co4 etc…
(You can toggle to each of them using the left or right buttons at this point.)
5) Press both buttons again and hold until the CO value is displayed… then use either the left or right button to make the value "0".
6) Press both buttons again and release to return to the Co cylinder selection and go to the next cylinder.
a) Do this for all 4 "Co" cylinder values and make them all "0"
b) When they are all set to "0", turn ignition key to the off position.
5) You can leave the light green wire grounded permanently if desired.
_________________________________________________________________________________
TPS instructions - SEE ALL PHOTOS BELOW !!
TPS Voltage - (measured in DC voltage) TPS = Throttle position sensor
TPS check/adjustment must be done before you re-install your airbox.
1) Idle speed MUST be set before TPS measurement/adjustment !!
2) Idle speed should not be set lower than 1250 - 1300 rpm at operating temperature - If it is less, then adjust it higher !!
Do not try to adjust idle speed unless engine is at operating temperature !!
TPS voltage is measured at the solid yellow wire & black/blue wire in the ECU's SMALL connector.
Slide a small drill bit, or sewing needle alongside the wire and push it deep into the connector until it contacts the terminal inside...
Yellow will be the + voltage.
The negative from the voltmeter will go to the black/blue wire.
Voltage should be 0.665 volts with engine running at normal operating temperature 170 degrees, and idle speed set between 1250 & 1300 rpm.
(There is no substitute for using a voltmeter such as the "Diag" mode... use a voltmeter !!)
If it is not 0.665 volts, loosen screws on sensor and adjust it to be this value.
If voltage is higher than 0.665 volts, fuel mileage & driveability will be affected negatively.
Do not try to adjust idle speed unless engine is at operating temperature !!
