C40 code

[babyblue]

2008 hayabusa throwing a c40 code..plz help

[SABUSABOY]

This is your ISC valve.
C40/P0505 - Circuit voltage of motor unusual - ISC valve curcuit open or shorted - Power Source Curcuit open
C40/P0506 - Idle speed lower than desired - Air passage clogged, ISC valve is fixed, ISC valve preset position incorrect
C40/P0507 - Idle speed higher than desired - ISC valve hose connection, ISC valve fixed, ISC valve preset position incorrect

[SABUSABOY]

Download the manual for for indepth help with your problem.
Suzuki GSX-R 1300 Hayabusa 2008-2012 Service Manual | Service manuals for Suzuki GSX-R Motorcycles