See also: Honda motorcycles service repair manuals
In this article, we'll talk about such a useful thing as Programmed Fuel Injection or FI. All owners of the Honda CBR 600 F4i will sooner or later have to deal with such a problem as the flashing of the FI (MIL) light.
These short and not much longer blinks are the same error codes. Each blink carries a certain number, which in turn will tell you about your malfunction. Long blinks (1.3 seconds) - number 10, short (0.5 seconds) - number 1.
For example: the light flashes twice 1.3 times and once faster (0.5 seconds). This tells us that error code 21 is a faulty O2 sensor (California only). If twice fast (0.5 seconds) - code 2, the vacuum hose of the MAP sensor is removed or disconnected, the MAP sensor is not working.
Code (MIL) |
Cause |
Symptoms |
Lit constantly |
There is a jumper in the service connector; |
The engine is operating normally. |
Not lit |
Power failure ECM; |
Engine does not start |
Not lit |
Open circuit MIL indicator; |
The engine is operating normally. |
1 |
The contact of the MAP sensor departs or not; |
The engine is operating normally. |
2 |
The vacuum hose of the MAP sensor is removed or disconnected; |
The engine is operating normally. |
7 |
Whether the contact of the FCT sensor departs; |
Heavy engine start at low temperature |
8 |
Whether or not the contact of the TP sensor departs; |
Bad throttle engine open |
9 |
Whether or not the contact of the IAT sensor departs; |
The engine is operating normally. |
11 |
The contact of the speedometer sensor departs or not; |
The engine is operating normally. |
12 |
Whether or not the contact of the injector No. 1 connector departs; |
Engine does not start |
13 |
Whether or not the contact of the injector No. 2 connector departs; |
Engine does not start |
14 |
Whether or not the contact of the injector No. 3 connector departs; |
Engine does not start |
15 |
Whether or not the contact of the injector No. 4 connector departs; |
Engine does not start |
18 |
Whether or not the contact of the pulse generator sensor connector departs; |
Engine does not start |
19 |
Whether or not the contact of the pulse ignition sensor departs; |
Engine does not start |
21 |
Faulty O2 sensor (California only); |
The engine is operating normally. |
23 |
Faulty O2 heating sensor (California only); |
The engine is operating normally. |
33 |
Damaged E2-PROM in ECM; |
Engine running normally |
Kay L (Saturday, 05 July 2025 04:26)
So i have a code 19 and i replaced both the speed senor and the stator and my crank sensor in my clutch case but im still left with the problem code 19 would it be the connectors that connect to my speed sensor to the pulse sensor the harness that holds those together
Mason smith (Monday, 05 August 2024 10:07)
I own a cbr f4i
Arek (Sunday, 19 March 2023)
Hym
ahcloth (Saturday, 08 January 2022 22:28)
ahcloth
Kat (Tuesday, 11 May 2021 00:44)
My 2002 Honda CBR F4i FI light blinks 5 times, what can be the problem ?