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Buell Forum » 1125R Superbike Board » Archives 001 » Archive through December 15, 2009 » IAC system error « Previous Next »

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Jackgraves
Posted on Sunday, December 06, 2009 - 12:38 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

my bike says p0506 I started it with no exhaust on would that have caused that error
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Moosestang
Posted on Sunday, December 06, 2009 - 09:33 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Had you checked for codes prior to the exhaust change? A lot of these come with codes all ready set and they are meaningless. If you have ecmspy, then clear the code and see if it returns.
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Jackgraves
Posted on Sunday, December 06, 2009 - 10:09 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

no I dont have anything to clear the codes, but it runs fine thanks man
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Puzzled
Posted on Tuesday, December 08, 2009 - 04:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

From when this happened to me.


quote:

Idle Air Control (IAC)

-------------------------------------------------- ------------------------------

While riding today my 08 1125R started acting stupid. It would stall/shut off when the throttle was moved just past idle. Occasionally it would do it without having a hand on the grip. At one time I had a hard time leaving from idle as it felt like the bike was loading up. Anything over 3500 and it ran fine.

The Instrument cluster shows a code of P0506- Idle Air Control system - RPM higher than expected

The instrument cluster display shows a 101 under IAC Control

I removed everything to expose the IAC and didn't see anything out of the ordinary (unplugged connector, vacuum hose off, pinched wires). According to the code it says the idle is to high (is is around 1500-1700). Is this as simple as adjusting the idle?

Anyone had something similar happen?

Sure it could go to the dealership however I'd prefer not to. All these bikes will eventually be out of warranty than we'll be dealing with this than.


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Puzzled
Posted on Tuesday, December 08, 2009 - 04:39 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)


quote:

Ok I reset the TP sensor, no luck.

So I pulled the air box off as well as the throttle bodies. There was a lot of oil like substance around the fittings connecting the IAC sensor to the throttle bodies. So I removed the IAC sensor and thoroughly cleaned it, the fittings and the throttle bodies. Put it all back together and it was better but not correct. I checked the IC in Diag mode and the IAC setting was moving all over the place, hmmm. I toggled the ignition a few times and the IAC setting stopped moving. I started the bike and chopped the throttle a few times. No stalling but a few times it was close. Test time, off to my favorite closed course. A few hot laps and than back to the shop. On my way back I blipped the throttle a few times as this would previously stall the bike, all was good. In the garage and a few more blips of the throttle, still good. The code is still there but the bike is behaving better. I'll go check it again and finish putting it back together after typing this.


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Puzzled
Posted on Tuesday, December 08, 2009 - 04:43 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I did not update that thread originally so here it goes. The cleaning of the IAC seemed to do the job. I used ECMspy coupled with my NOT ALLOWED TO MENTION SOFTWARE FROM OHIO to clear the code and everything has been great since.
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