GSXR error code -c28

[Cajun]

Hi Guys

Went to go for kb ride today, 20kms from home, notice red light on dash, and fi light on, pull over straight away. go over bike to see if anything wrong with the 600 there was plenty of oil etc in it

So decided to limp it home, still plenty of power there, not missing or nothing

Put it in dealer mode and i get c28

With the manual i have it says it Seconday Throttle valve actuator.

Can anyone tell me what this means?
Would this have anything to do with the gsxr1000 pc3 thats been wired in to my bike about 2000kms ago.

Cheers

[Pussy]

Try disconnecting the PC and see if the code comes up again. I had trouble with a PC on my K4 , was throwing C32 code, #1 injectoer. It turned out there was a problem with the PC. It was replaced, no further problems

[saul]

Hi Guys

Went to go for kb ride today, 20kms from home, notice red light on dash, and fi light on, pull over straight away. go over bike to see if anything wrong with the 600 there was plenty of oil etc in it

So decided to limp it home, still plenty of power there, not missing or nothing

Put it in dealer mode and i get c28

With the manual i have it says it Seconday Throttle valve actuator.

Can anyone tell me what this means?
Would this have anything to do with the gsxr1000 pc3 thats been wired in to my bike about 2000kms ago.

Cheers

POWER ADAPTER FOR Power Commander III...

C28 is pretty easy to trouble shoot mate. Go here http://www.81x.com/bugman/gixxermods and sort it :yes:

whos a clever lad then:innocent:

[saul]

Hi Guys

Went to go for kb ride today, 20kms from home, notice red light on dash, and fi light on, pull over straight away. go over bike to see if anything wrong with the 600 there was plenty of oil etc in it

So decided to limp it home, still plenty of power there, not missing or nothing

Put it in dealer mode and i get c28

With the manual i have it says it Seconday Throttle valve actuator.

Can anyone tell me what this means?
Would this have anything to do with the gsxr1000 pc3 thats been wired in to my bike about 2000kms ago.

Cheers

C28, C29 and STPS adjustment c28 errors are common. You can pursure the checklist of items as shown in the service manual, but I would recommend doing something else first. A common source of a c28 error is actually not mentioned anywhere in the service manual: a miscalibrated STPS. Adjusting the STPS is easy, and will take you 10 seconds with a T25 torx screwdriver and a multimeter. You might expect a miscalibrated STPS to give you a c29 error, but that only happens if the sensor is broken or shorted out, not if it is miscalibrated.

So if you're getting a "c28" error, BEFORE you do anything else, check the resistance at the STPS coupler and make sure it is 500 ohms on the nose. If that is correct and you're STILL getting the c28 error, then go down the checklist in the manual under "c28" below.

If you hear a ratcheting, clicking sound after you turn the key in the ignition, and after the fuel pump primes the injectors (the normal machine-like sound you hear before you start the bike), then that ratcheting sound is telling you that you have to adjust your STPS.

For instructions on investigating a c29 error, and pics and instructions on how to adjust your STPS, click on the link "c29 and STPS" below. Remember, MOST C28 ERRORS ARE CAUSED by a misaligned STPS, not by items you'll find in the manual under "C28". C29 and STPS adjustment C28 Manual Scan Both the STPS and the TPS use a T25 Torx screwdriver for their adjustment. This is the "special Suzuki tool" mentioned in the service manual. Get one at your hardware store for a few bucks.

[Cajun]

Try disconnecting the PC and see if the code comes up again. I had trouble with a PC on my K4 , was throwing C32 code, #1 injectoer. It turned out there was a problem with the PC. It was replaced, no further problems


can't discconect the pc3 it is hard wired in to the bike since its off a gsxr 1000 k4 not a gsxr 600

[Cajun]

Cheerys Glenn mate for the info.

Will have to go down to workshop tomorrow and see what i can figure out, and find me a multimeter to

[Fatjim]

i think it's become self aware, figured out it's a suzuki, and shat itself.

[Cajun]

i think it's become self aware, figured out it's a suzuki, and shat itself.

Don't need any of that here please.

This is my first problem with my bike in over 2 1/2 years and 30,000kms, and its not major since bike is not miss fireing or nothing along those lines.

[lukelin250]

i think it's become self aware, figured out it's a suzuki, and shat itself.

ahahah A.I gone wrong. :dodge:

[Cajun]

Couldn't get any ohms over the STPS sensor, got 5.1volts out of it tho, i think that might be the problem tho,

Since the butterflys do sorta move, and from that bugmens site
the line like the attached picture is the problem. So just gotta get a t25 torx screwdriver tomorrow to adjust it

That site is simlar to the 600 nto total the same but by using that and printed service manual i got here i am semi working it out i hope

[saul]

Couldn't get any ohms over the STPS sensor, got 5.1volts out of it tho, i think that might be the problem tho,

Since the butterflys do sorta move, and from that bugmens site
the line like the attached picture is the problem. So just gotta get a t25 torx screwdriver tomorrow to adjust it

That site is simlar to the 600 nto total the same but by using that and printed service manual i got here i am semi working it out i hope

Careful there mate that is the TPS you are talking about there you should be looking at the STPS according to buggy:yes:

It dosent take much movement for the ohms reading to change

[Kornholio]

Got TP for bunghole?

Hope yours isnt as hard to fix as mine is....im looking at another gearbox rebuild :(

[Cajun]

another gearbox didn't you only just do that?
be cheaper to buy a new bike by now would it not?

[Wenier]

Dont no if ya tried this, but this is the info i have on it.

[Cajun]

Another play with a couple of ideas this afternoon

and i think the STPS is stuffed )c: <

i can't get any ohm reading off it. Tired a couple of other things. no lucky

Hopeful have a professional look at it for me tomorrow to confirm my theory.

[Cajun]

by joe i fixed it

But now dash is dead, but i think that is due to flat battery, will have to confirm this afternoon, that i fixed it

but the error had gone from c28 to c00(which means no error) and the little line had gone from the bottom to the middle.

[Cajun]

guess i spoke to soon, went back turned the key and what you know C28 apeared again and also the line had gone from middle to the top

[SimJen]

I thought C28 was the main TPS sensor?
Sometimes the sensors get glugged up and while they work, they take a little while to return to zero which fools the computer.
Happened to me and made shifting a crappy affair and made me sound a newbie......This was on my K1 1000 though which had a voracious appetite for TPS's.

[saul]

guess i spoke to soon, went back turned the key and what you know C28 apeared again and also the line had gone from middle to the top

Mate 10 minutes and you should be sorted, get on with it:innocent: :yes:

[Cajun]

yeah the line is in middle but still brings up the c28 which does not want to go away )c: <

Steve is gonna have a look at it on saturday for me.

[kawa10]

good old steve. he a top bloke aye. :love:

[Cajun]

good old steve. he a top bloke aye. :love:

bit funny looking tho

[Lou Girardin]

i think it's become self aware, figured out it's a suzuki, and shat itself.

There's nothing wrong with Spewzooks that new dealers wouldn't correct.
Seen test results from MotoGP yet? Where's Honda?

[Cajun]

Big ups to kawa10

He fixed it for me, was a faulty stva, which is a common problem, which we he believes could be a design fault, or put together incorrectly in the first place, but he figured something out, and have modidyed so it now works again.