got a DTC need help with
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Cruiser
Joined: Mar 2010
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got a DTC need help with
p0154
rear 02 sensor open/not responding
my brothers 08 fat bob has had a lil issue since we put the power commander 3 on it and i can't figure out what to do. it will sometimes stay on high idle when coming to a red light and will stay that way for some time even if the bike is warm. i called power commander and they told me that in no way was it the tuner, i asked if it could be the 02 eliminator and was told that he had never herd of one going bad. and proceeded to tell me that the code being thrown could lead me elsewhere on the bike like the IAC or TPS does anybody have any suggestions.
rear 02 sensor open/not responding
my brothers 08 fat bob has had a lil issue since we put the power commander 3 on it and i can't figure out what to do. it will sometimes stay on high idle when coming to a red light and will stay that way for some time even if the bike is warm. i called power commander and they told me that in no way was it the tuner, i asked if it could be the 02 eliminator and was told that he had never herd of one going bad. and proceeded to tell me that the code being thrown could lead me elsewhere on the bike like the IAC or TPS does anybody have any suggestions.
Outstanding HDF Member
Joined: Nov 2010
Posts: 2,250
Likes: 36
From: Montana
sounds like the 02 sensor eliminators trigger a diagnostic code when you use them? Its possible the diagnostic system only thinks there is a problem and triggers a code when the problem is only that the o2 sensors are not being used and its confusing the computer.
As far as the high idle goes my 2011 Street Bob did this during the summer time. I called HD and asked there technical guys and was told the higher idle is just the engine idling higher to cool itself off . I have never had my bike run bad (2011 Street Bob) but when the weather is hot and the motor gets hot when I pull up to a stop light the motor always idles high until the temperature drops some and the motor starts to cool off a little bit.. It takes some getting used to it , the idle can be as high as 1500 RPM . this is normal for an efi bike. It will do this even with some aftermarket tuners. I have a TV3 and it still does it. If it revs higher than about 1500 id call the HD shop and tell them you have a problem. Don't be surprised however if they don't blame the PC3 .
As far as the high idle goes my 2011 Street Bob did this during the summer time. I called HD and asked there technical guys and was told the higher idle is just the engine idling higher to cool itself off . I have never had my bike run bad (2011 Street Bob) but when the weather is hot and the motor gets hot when I pull up to a stop light the motor always idles high until the temperature drops some and the motor starts to cool off a little bit.. It takes some getting used to it , the idle can be as high as 1500 RPM . this is normal for an efi bike. It will do this even with some aftermarket tuners. I have a TV3 and it still does it. If it revs higher than about 1500 id call the HD shop and tell them you have a problem. Don't be surprised however if they don't blame the PC3 .
Outstanding HDF Member
Joined: Nov 2010
Posts: 2,250
Likes: 36
From: Montana
this is not new news but they really should have included an oil cooler stock on these bikes to help manage the temps better. Re - tuning helps but does not eliminate the problem completely. the twin cam motors just run hot .
Outstanding HDF Member
Joined: Dec 2007
Posts: 2,971
Likes: 840
From: In front of the computer for now.
How does an air cooled motor's cooling system benefit from a high idle? I could understand if it were liquid cooled to keep the fluid moving with the (water) pump but, air cooled?
p0154
rear 02 sensor open/not responding
my brothers 08 fat bob has had a lil issue since we put the power commander 3 on it and i can't figure out what to do. it will sometimes stay on high idle when coming to a red light and will stay that way for some time even if the bike is warm. i called power commander and they told me that in no way was it the tuner, i asked if it could be the 02 eliminator and was told that he had never herd of one going bad. and proceeded to tell me that the code being thrown could lead me elsewhere on the bike like the IAC or TPS does anybody have any suggestions.
rear 02 sensor open/not responding
my brothers 08 fat bob has had a lil issue since we put the power commander 3 on it and i can't figure out what to do. it will sometimes stay on high idle when coming to a red light and will stay that way for some time even if the bike is warm. i called power commander and they told me that in no way was it the tuner, i asked if it could be the 02 eliminator and was told that he had never herd of one going bad. and proceeded to tell me that the code being thrown could lead me elsewhere on the bike like the IAC or TPS does anybody have any suggestions.
Here's what you need from Radio Shack:
http://www.radioshack.com/product/in...ductId=2062351
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Elite HDF Member
Joined: Jul 2007
Posts: 4,749
Likes: 16
From: sand mountain Alabama
A high idle is very common on some of the bikes. My Ultra does it at times.
What code does it throw?
that may lead to the problem. I am not so sure it is the PC3 unless it is not have good connections. Is it a plug and play type?
However, you can disconnect it and reconnect he o2 sensors without removing everything just to see if it does it without it. I don't suggest taking a trip though. long enough to get it at full operating temperature.
So it idles correctly until it warms up?
If you bought it from fuelmoto they have a very good warranty and they will replace it without any questions or tell you what it may be.
just a thought
dd
What code does it throw?
that may lead to the problem. I am not so sure it is the PC3 unless it is not have good connections. Is it a plug and play type?
However, you can disconnect it and reconnect he o2 sensors without removing everything just to see if it does it without it. I don't suggest taking a trip though. long enough to get it at full operating temperature.
So it idles correctly until it warms up?
If you bought it from fuelmoto they have a very good warranty and they will replace it without any questions or tell you what it may be.
just a thought
dd
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Outstanding HDF Member
Joined: Nov 2007
Posts: 2,289
Likes: 22
From: Beautiful Downtown Burbank
I have a question for you...
Has a "check engine" light been thrown?
If not, dont worry about a p0154 code. Its one of the codes we ignore when we see it, unless its associated with a check engine light. Even then, if you have O2 eliminators, you could have a bent/broken pin in the connector, or the eliminator took a dump.
I will say this, the P0154 code and the high idle are NOT related.
If you want to put a bandaid on the high idle, shoot some carb cleaner down the port for the IAC and clean the built up gunk out of it. This will usually work for a while, until the IAC finally gives up the ghost. Then replace the IAC.
You'll know when the IAC goes. The bike wont idle at all.
Has a "check engine" light been thrown?
If not, dont worry about a p0154 code. Its one of the codes we ignore when we see it, unless its associated with a check engine light. Even then, if you have O2 eliminators, you could have a bent/broken pin in the connector, or the eliminator took a dump.
I will say this, the P0154 code and the high idle are NOT related.
If you want to put a bandaid on the high idle, shoot some carb cleaner down the port for the IAC and clean the built up gunk out of it. This will usually work for a while, until the IAC finally gives up the ghost. Then replace the IAC.
You'll know when the IAC goes. The bike wont idle at all.
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