In our EFI system it is very important to define the starting point of the throttle. For this prurpose, we
have the option "Throttle setting" of K-scan.
To proceed, we must click the icon in the toolbar (Fig.4) to access to the menu. Before making any
adjustment, check that the throttle cable is free, otherwise you will not provide a good setting to the ECU.
(Fig.4)
On the screen, we have an option labeled as 'Set to ECU " which is used for assigning the zero position of
the throttle to the voltage value, which actually the ECU is reading from the sensor. (Fig. 5). Any error on the
Tps setting, will offset ignition and injection timing, causing lack of performance, bad startability, and high
fuel consumption, and it can also damage the engine. The standard value of TPS voltage is set at 0.6 V (0.6
V ±0.04 v).
To adjust the Tps correctly in case of manipulation by the user, we first must check the Idle, and forget about
voltage readings. On a warmed up bike, the idle must be kept on a 1400 Rpm average value.We consideer a
warmed up bike, a bike that had the fan working for three times minimum. If this idle condition is not reached,
we must set it through the throttle stop screw on the right side from riding position, on the tps. Before
modifying the screw's position, first we must set the minimum voltage to the ECU with the computer as
explained on the previous paragraph. After that we must use that screw to find the exact point of 1400 Rpm
Idle. The next step is to stop the bike and set the throttle position to ECU again. After that, we must restart
the bike and check that the idle is not affected by the resetting. If the idle is without specification, please
repeat the previously mentioned steps until it gets stable after resetting the Tps value with the computer.
Sometimes, it takes up to three or four times setting to get it right. Once we have reached the desired idle,
we will work on the voltage reading.We must stop the bike, and modify the TPS sensor position, on the left
side of the throttle body, to match our standard value. To do it, we must unscrew the fixing bolt of the sensor,
and turn it clockwise or counterclockwise in order to find the 0,6 v reading on the throttle setting screen.
Once we have this value on the screen, we must fix the retaining screw, and we must set that voltage to the
ECU again, and restart the bike. If everything is done correct, this process is completed. The 0,6 voltage is
for reference for guessing in further operations on the bike, if this system has any problem.
Hello everyone.
I have the kscan software, but not the diagnostic cable.
Does anyone know which cables go to every color in the control unit ?
Has anyone made a cable as btwice?
Thanks in advance.
Tr280i Diagnostic Software
in OSSA
Posted
Hi. I think until you don´t put the throttle butterfly in place, the bike will not start.