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Possible o2 sensor issue

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Old Mar 30, 2016 | 12:17 PM
  #61  
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Originally Posted by lp
Seen more than a few Fuelpak and older Power Commanders do this.
Inline tuners... sometimes interrupt the signal which puts the sensor out of range according to the ECM.

But since it was taken off... yeah, cleaning the O2s was a good choice.
I have heard of fuelpaks and power commanders going bad too. I'm kinda nervous to put the fuelpak back on.


Originally Posted by 1Canuck
bdtaylor1979
have you washed your bike since the codes left? If not, perhaps you should soak it to ensure the codes do not return. while the cleaning process was good, any moisture in connectors also had a chance with time to dry out.

PS. I use techron with every tank from Chevron
I haven't washed the bike since.
 
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Old Apr 8, 2016 | 01:29 PM
  #62  
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Ok,its been over a wk since you lat update so hows the bike running since you ran 2 tanks treated with Techron and then 1 tank with the 02 sensor/cat cleaner ?

Does the motor seem to idle/run a bit better with better mpg along with more importantly " no more re-appearing o2 sensor codes" ?

If no more o2 codes re-appeared then id say the 2 step cleaning process i rec did the trick.

If same o2 sensor codes re-appeared with the motor still running great with good mpg you can either put a piece of tape over the chk engine light & forget about it! (LOL!) .

Or i'm sorry to say you'r o2's with over 100k miles on them are past the point of no return requiring replacement as long as the wiring & connectors for the o2's all chk out ok.

scott
 
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Old Apr 8, 2016 | 05:29 PM
  #63  
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I don't know which Fuelpak the '09s get but my '12 got the FP-LCD. When first set up I emailed V&H and told them I was less than impressed. The engine got a bit uneven when just tooling about town. They told me to install the O2 sensor eliminators (included in the kit) and ride it that way. That solved the problem for me. The O2 eliminators simply keep the O2 sensor connector from seating in the mate, effectively leaving them disconnected. I've never seen a code from this, and the bike runs great with the tune they recommended. Can't you just leave the O2 sensors disconnected?
 
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Old Apr 8, 2016 | 05:57 PM
  #64  
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Originally Posted by harkon
........ Can't you just leave the O2 sensors disconnected?
ya, after all what they do is tell the ECM that the input orders went through correctly or hey they did not and we need to make a quick correction. better just to cross fingers that the map is perfect and no need to measure the actual results.
why take your finger off the start button after the engine starts?
 
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Old Apr 8, 2016 | 06:27 PM
  #65  
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Originally Posted by harkon
I don't know which Fuelpak the '09s get but my '12 got the FP-LCD. When first set up I emailed V&H and told them I was less than impressed. The engine got a bit uneven when just tooling about town. They told me to install the O2 sensor eliminators (included in the kit) and ride it that way. That solved the problem for me. The O2 eliminators simply keep the O2 sensor connector from seating in the mate, effectively leaving them disconnected. I've never seen a code from this, and the bike runs great with the tune they recommended. Can't you just leave the O2 sensors disconnected?
===============================================

FYI,it looks as though you didnt read the full thread because the OP posted a page or so back in this thread the motor's been running well & the bike hasnt had any re-appearing 02/emission codes in the past 3-4+ tanks of fuel post doing the 2 step cleaning process i rec he do either so no need to disconnect5 02's.

I have found over the past 4+ decades wrenching cars/bikes that when vehicles with EFI systems spit out O2 sonsor emission type codes more often then not its due to poor engine/poor EFI maint allowing excess carbon contamination bulidup in combustion chambers that migrated out in exhaust coating/contaminating the o2's resulting in o2/emission codes.

I have had many people come to me over the yrs with car/bikes that were experiencing 02/emission codes and every time i asked if & or when was the last time they had the EFI system cleaned and 9 of 10 times they would say whats that or never in 80k-90k-100k+ miles ago which is NG!

Another thing to keep in mind is even when your running top tier fuel the motor can still benefit from the 2 step cleaning procedure i rec a min of 1x yrly consisting of running a full tank of fuel treated with 1 20oz container of chevron Techron (says concentrated on front label) & then a bottle of MRGaskets 02 sensor/cat cleaner right after that.

Scott
 
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Old Apr 8, 2016 | 10:00 PM
  #66  
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Originally Posted by wscott
Ok,its been over a wk since you lat update so hows the bike running since you ran 2 tanks treated with Techron and then 1 tank with the 02 sensor/cat cleaner ?

Does the motor seem to idle/run a bit better with better mpg along with more importantly " no more re-appearing o2 sensor codes" ?

If no more o2 codes re-appeared then id say the 2 step cleaning process i rec did the trick.

If same o2 sensor codes re-appeared with the motor still running great with good mpg you can either put a piece of tape over the chk engine light & forget about it! (LOL!) .

Or i'm sorry to say you'r o2's with over 100k miles on them are past the point of no return requiring replacement as long as the wiring & connectors for the o2's all chk out ok.

scott
I have had something come up the last 2 weekends, so I have only been able to ride back and forth to work. Ran the 2 tanks with techron and currently on the tank with o2 sensor cleaner. Been probably 200-300 miles with no reappearing codes.

Engine seems to run good with good power. I didn't think to check the gas mileage so I don't know if it is getting better mpgs or not.

The check engine light has actually never come on. I just checked the codes after washing the bike and the codes were there. I was debating on hooking the fuelpak back up and see if the codes come back. If they do, the fuelpak is probably bad. If not, I guess the o2 sensor wires got wet while washing the bike.
 
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Old Apr 8, 2016 | 10:02 PM
  #67  
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Originally Posted by harkon
I don't know which Fuelpak the '09s get but my '12 got the FP-LCD. When first set up I emailed V&H and told them I was less than impressed. The engine got a bit uneven when just tooling about town. They told me to install the O2 sensor eliminators (included in the kit) and ride it that way. That solved the problem for me. The O2 eliminators simply keep the O2 sensor connector from seating in the mate, effectively leaving them disconnected. I've never seen a code from this, and the bike runs great with the tune they recommended. Can't you just leave the O2 sensors disconnected?
This is the fuelpak that goes on my bike. I got it used from the classified section on the forum last year. I don't know if there is a option to eliminate the o2 sensors on my year model or not.
 
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Old Apr 8, 2016 | 10:57 PM
  #68  
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Originally Posted by bdtaylor1979
I have had something come up the last 2 weekends, so I have only been able to ride back and forth to work. Ran the 2 tanks with techron and currently on the tank with o2 sensor cleaner. Been probably 200-300 miles with no reappearing codes.

Engine seems to run good with good power. I didn't think to check the gas mileage so I don't know if it is getting better mpgs or not.

The check engine light has actually never come on. I just checked the codes after washing the bike and the codes were there. I was debating on hooking the fuelpak back up and see if the codes come back. If they do, the fuelpak is probably bad. If not, I guess the o2 sensor wires got wet while washing the bike.
=========================

" I guess the o2 sensor wires got wet while washing the bike "

WHAT!

not so & wasnt the problem driving o2 codes on the bike.

I think you forgot It was after you had the codes show up post washing the bike & letting it dry out along with also checking to ensure connectors & wires were ok on the o2's (which checked out ok) that you still had o2 codes appearing thats when you decided you had nothing to loose trying my 2 step cleaning procedure to see if that would stop the re-appearing o2 codes that were still present on your bike.

And now your saying you guess it was water causing the o2 codes when in fact the codes didnt stop re-appearing till you got to thru the 1st 1/2 tank of fuel treated with my rec healthy dose of techron thru the motor which was in fact when the codes 1st stopped re-appearing which is the way it went just like i told would likely be the case in the 1st place and your still saying it was water,not so.

You then ran the rest of that 1st tank treated w-techron and then ran a 2nd tank treated with techron too with again, no more re-appearing o2 codes post 2 tanks techron.

Now your on the 3rd tank of fuel treated with o2 sensor/cat cleaner and still no more re-appearing codes tells me what i thought was going and that it was in fact dirty o2's that caused the o2 codes which my rec 2 step cleaning process corrected.

BTW,since your in the middle or further into the 3rd tank of fuel that should be closer to 350-400miles + and not 200-300 miles you thought you have on bike thus far with no codes unless your bikes getting horrible fuel mileage like 32-33mpg.

Thats way i believe it went from all the back & forth posts we had on it checking in with you to see how it was going.

Happy motoring & glad to hear the codes have not returned & the motor is running good & strong as it should.

Scott
 
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Old Apr 8, 2016 | 11:33 PM
  #69  
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delete!
 

Last edited by wscott; Apr 8, 2016 at 11:34 PM. Reason: opps,mistake
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Old Apr 9, 2016 | 11:12 AM
  #70  
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Apparently the cleaners didn't do anything for the o2 sensor codes. I got gas again and went home and hooked the fuelpak back up. Went for a ride and both the po132 and po152 for both o2 sensors reading high came back. I guess I get to buy another tuner
 
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