2008 Idling high

[boneman113]

Got a 2008 with EFI. Just changed over the EHC to the Wire Plus. Motor idling at 3000+... The Pit Bull didn't run when I got it but now it does but with a real high idle. What's a good idle for the bike and what should I be troubleshooting for this problem? Could it be related to the new Wire Plus equipment? The service manual doesn't say anything about this kind of issue.

 

[Chopper Dave]

yeah...3000 rpm is a little high
bike should have idle set at 1000 rpm... anything lower than 900 and all of your tach lights will flash...
not sure about the EFI models...someone else will chime in

 

[pknowles]

Don't run it anymore until your read bigdogbro1"s post on this problem. It sounds like the same problem I had after installing the wire-plus. You have to connect the A1 wire directly to the battery with an inline 1 to 3 amp fuse. I have a 0& Bulldog with efi and had the same problem. Double check your wires and read the post on here. I think Jake has updated his instruction for this also. If you bought the wire-plus from Jake, send him a pm, if not Bigdogbro1 helped me with mine. If you still need help this afternoon, I will go thru my notes and send you what I have.

 

[pknowles]

http://www.bigdogbiker.com/forums/general/26306-wire-plus-installed.html?highlight=pknowles

If you follow this link to the thread I started back in Feb/march it will let you see what I am talking about. Also, you will have to tie in a resistor for the check engine and low fuel light to get them working right. This stuff comes from Don at wire-plus. One other thing, I just found out that the method for turning on the 4 way flashers has changed, you just double click either turn signal and this activates them(thanks Jake). On the link above, I couldn't get a short cut to copy?? so if you do a search on pknowles and post, look back to late feb/early march and you will find the post on wire-plusw installed. Keep us posted

 

[BigDogBro1]

3000 RPM is too high........1000 RPM is the target range.

The EFI idle RPM is controlled by the Idle Air Controller (IAC) located on the throttle body. The IAC is a stepper motor driven air passage valve that opens and closes via the EFI controller. It regulates the air flow which simulates the idle adjustment screw on a carb intake system except it automatically changes based on EFI feedback.

If the wiring makes no change then the IAC may be bad, leaky O-ring, sticking due to carbon build-up or a mechanical hang-up.

All EFI parts are available through S&S Cycle.
http://www.sscycle.com/

When you disconnect the battery on an EFI bike, there is a reset proceedure to follow after battery reconnect.
There is a sticker near the battery/fender with the instructions on EFI bikes.
"Connect battery...turn key ON...press RUN button...Allow engine check light to go out...turn OFF key and keep it OFF for minimum of 15 seconds."

This resets all the sensors for the EFI system.

Of coarse you know you loose all learned EFI data when you disconnect the battery. It will relearn it within 50 miles.


Hope this helps.

 

[boneman113]

High Idle

Thanks for all the good info. I'm going to be working on it this afternoon. I'll post the results on this thread when I'm done.

 

[boneman113]

I didn't have the A1 constant power hooked up. And between that and resetting the EFI the Pit is idling at about 1000 RPMs. It was a great feeling hearing the Pit fire up. Sounds real nice. Thanks for the help. I'll post a follow up on this thread soon.

Can't thank you guys enough,
Boneman