C28 Fault code again!
 

Got the dreaded c28 code, bike is revving it's head off on a closed throttle, I take it it's unlikely to be a loose connection? :smt013:smt013:smt013

Re: C28 Fault code again!
 

secondary throttle valve actuator

Re: C28 Fault code again!
 

Correct. C28 = STVA

Re: C28 Fault code again!
 

Megabucks then!

poo!

Re: C28 Fault code again!
 

Check connections on the actuator first and then continuity on the relevant wiring between STVA and ECU - it may not be the actuator itself.

Re: C28 Fault code again!
 

Checked the connections, all OK, if it's a wiring job, then that's something I'll not be too keen on getting involved in.

It only happens after a sustained period of full power, that's the annoying thing, ride easy and it's fine, give it the beans and it gives up the ghost.

Re: C28 Fault code again!
 

Or get a simulator/eliminator from Decosse then lock it fully open.

Re: C28 Fault code again!
 

not the best idea in our cold weather here as your auto fast idle will then no longer work correctly, that mod is for race bikes which are usualy on large thottle openings anyway

Re: C28 Fault code again!
 

Hi, if you havent sorted this problem I had exactly the same some time ago so have a look at the thread I started: 'fi fault light'.
Cheers glang.

Re: C28 Fault code again!
 

For those following this thread (like me) the thread mentioned above is - http://forums.sv650.org/showthread.php?t=99650