FI light // Need help!!

[KFX450ICELAND]

Ok, so i was riding today, and my FI light came on, It doesnt blink or anything, Just stays on.


Does anyone know what could be wrong, And is it okay to ride it with the light on ?


Sorry about my writing


And i need answers fast !

thx, alex



EDIT: OK I grounded the Black/orange wire, and now i get "one long and three short" blinks and that means it's a Issue with Air Temperature Sensor

Where exactly is the Air Temperature Sensor ? and do i have to buy a new one or can i fix the one i have now ?

[Blownchevelle68]

So did the bike quit running or not? (Im assuming that it still runs)

Have you checked your fuses?

[KFX450ICELAND]

Quote: Originally Posted by Blownchevelle68

So did the bike quit running or not? (Im assuming that it still runs)

Have you checked your fuses?

yup , it still runs fine, and no i didn't check the fuses , What fuses should i check ? The fuses in the brown boxes under the hood ?

[Blownchevelle68]

Yeah I would start there, under the hood. Check those. Normally a fuse either works or it does'nt. BUT there could be a issue of moisture or other contaminents that have worked into those connections. I would also start checking the wiring as it runs along the frame or anyplace it looks like it could rub on something.

And don't forget to check the grounds. They can be a problem as well

[KFX450ICELAND]

The fuses in the brown boxes are OK,



But is it okay to ride the bike with the light on ?

[KFX450ICELAND]

Can it harm the bike in any why if i ride it with the FI light on ?

[Blownchevelle68]

Im not sure it would harm anything, I would sooner think it will just stop supplying fuel...But Im not 100% positive...

I would think at any rate, if the light was on and the bike is still running, its some sort of simple fix....Possibly a wire that has rubbed somewhere and is starting to ground out..

But If I remember correctly, isn't the FI light a dual purpose light, it serves some other function or warning as well???

[KFX450ICELAND]

I found this,


If your FI light stays on you have an issue with the electrical devices associated with the DFI (digital fuel injection). Here is how to run the self-diagnostic procedure.

Make sure the ignition switch is off. Make sure your battery is fully charged before running self-diagnostic or the FI light will not flash the fault codes. Remove the upper cover. This is the cover with the lights attached. There are two screws one on each side of the lights that need to be removed. The screws are tough to get at unless you turn the handlebars as far as they will go in each direction. After the screws are out, you can slide the cover upward and it will come loose. You can disconnect the cover plug so you can set the cover down. You will see a bunch of wires go into a black plastic sleeve that is ty-rapped. Remove the ty-raps and on one side there is a velcro enclosure. Remove the sleeve and you will see a pair of plugs (leave them alone) and a orange/black wire with a connector covered by a clear plastic insulator. You are going to take a piece of wire and ground this connector to a good ground such as the negative on the battery. Reconnect the cover plug so the FI light will work. Turn on the ignition and ground the wire connected to the orange/black wire.

If there is something wrong with electrical components for the DFI, the FI light will blink a code.

The codes are as follows:

11 One long and one short blinks. Issue with Main Throttle Sensor.

12 One long and two short blinks. Issue with the Air Pressure Sensor.

13 One long and three short blinks. Issue with Air Temperature Sensor.

14 One long and four short blinks. Issue with Water Temperature Sensor

21 Two long and one short blinks. Issue with Crankshaft Sensor.

31 Three long and one short blinks. Issue with Vehicle-down Sensor.

41 Four long and one short blinks. Issue with Fuel Injector.

46 Four long and six short blinks. Issue with Fuel Pump Relay.

51 Five long and one short blinks. Issue with Ignition Coil.

Also check all grounds as they can cause any of these issues also.

When the air temperature sensor fails, the ECU (Electronic Control Unit) uses a fixed setting of 86 degrees F. The air temperature sensor part No. is 21176-0048 and is $10.75.

[epinac18]

that light is also the temperature light, could be running hot if you said the light came on while you were riding. after it cooled down is the light still on?

[KFX450ICELAND]

OK I grounded the Black/orange wire, and now i get "one long and three short" blinks and that means it's a Issue with Air Temperature Sensor

Where exactly is the Air Temperature Sensor ? and do i have to buy a new one or can i fix the one i have now ?