Dreaded high idle problem

[Rocket Scientist]

I have a question for the group. Has anyone had a bone stock Rocket develope the high idle problem ? Stock exhaust, stock air cleaner, factory tune.

 

[bikecrazy]

Yes, caused by a faulty TPS.

 

[Gerald]

I have a question for the group. Has anyone had a bone stock Rocket develope the high idle problem ? Stock exhaust, stock air cleaner, factory tune.

Yes, before modifying, found several maybe's but no definite answer. Finally disconnected the link and no more problems, didn't set any codes after removing link.

 

[warp9.9]

Yeppers my 06 had the Old TPS back when it just started to be a problem. After the change I never had a broblem unless you don't keep all the throttle body linkages and stepper motor linkage clean. So the throttle return is alwas the same. Especially when you turn the key and the process of ecm home referencing occurs.

 

[Rocket Scientist]

Yeppers my 06 had the Old TPS back when it just started to be a problem. After the change I never had a broblem unless you don't keep all the throttle body linkages and stepper motor linkage clean. So the throttle return is alwas the same. Especially when you turn the key and the process of ecm home referencing occurs.

The thing that never made sense to me is (at least on my bike) when the high idle would occur, I could hit the kill switch, then restart and the idle would be correct again. To me that points to an electronic issue. When mine would start doing the high idle repeatedly, I would do a stepper motor reset and it would be good for awhile. I later discovered if I just reset the adaptives it accomplished the same thing. I could even tell when it getting close to the time to do it again because it would start taking longer and longer to return to idle. It's like it stores some bad information and eventually it starts to cause problems. I always suspected it was because of modified tunes, secondary butterflies being gone, oxygen sensor being turned off in the tune. Mine never was the TPS. I bought a new one with the blue internals. It didn't help. I believe I'm back on the original equipment one now. This is how I have handled it.

 

[Kevin frazier]

The thing that never made sense to me is (at least on my bike) when the high idle would occur, I could hit the kill switch, then restart and the idle would be correct again. To me that points to an electronic issue. When mine would start doing the high idle repeatedly, I would do a stepper motor reset and it would be good for awhile. I later discovered if I just reset the adaptives it accomplished the same thing. I could even tell when it getting close to the time to do it again because it would start taking longer and longer to return to idle. It's like it stores some bad information and eventually it starts to cause problems. I always suspected it was because of modified tunes, secondary butterflies being gone, oxygen sensor being turned off in the tune. Mine never was the TPS. I bought a new one with the blue internals. It didn't help. I believe I'm back on the original equipment one now. This is how I have handled it.

You do that thing thang like a weedeater, pull out push in, when warm. Thats the original ole skool choke, love it

 

[Rocket Scientist]

You do that thing thang like a weedeater, pull out push in, when warm. Thats the original ole skool choke, love it

Not exactly, it's a remote idle adjuster. It's accessable just below the bearclaw. You can turn the idle speed up and down easily.

 

[Kevin frazier]

Cool idea, is your stepper still active?

 

[Rocket Scientist]

Cool idea, is your stepper still active?

No, stepper is long gone. I got tired of having to fark with it all the time. I would still like to solve the mystery of the high idle.

 

[Kevin frazier]

No, stepper is long gone. I got tired of having to fark with it all the time. I would still like to solve the mystery of the high idle.

When it is doing the high idle thing have you ever hooked tune ecu up to see what throttle bodies are doing?