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Possible o2 sensor issue

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Old Mar 24, 2016 | 08:24 PM
  #41  
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Originally Posted by wscott
===============

Thanks for the feedback.

Well even though you only have approx 60-80miles on the 1st tank of fuel treated ewith concentrated Techron its still a good sign when you wiggled front 02 sensor wire-s again & no codes re-appeared prior to the last ride where you said no codes re-appeared when you got home too.

So try wiggling the front 02 sensor wires on your next ride and if no codes reappear that should be a good sigh theres not an issue with the wire & or connector and that it was maybe just a coincidence a code appeared the prior time you moved the 02 wire & or connector.

BTW,having no code reappear on you last ride home is a good sign,if no code re-appear on your next ride i'd say the techron looks to be cleaning things up is doing its job

So since your motor has 100k miles on it without ever having the type cleaning maint i rec at least 1x yrly i strongly rec running a 2nd tank of concentrated Techron at same dose of 9oz techron per full tank/6 gals fuel before filling up a 3rd time to then do the 2nd cleaning i rec dosed with the cat & 02 sensor cleaner like i rec you do in my earlier post to you.

Keep use posted as you get thru the 2nd tank of techron and then after running a tank with o2 sensor & cat cleaner too.

Good luck.

Scott
I wiggled the wire yesterday and rode home and no code. Rode to work today and no code. Rode home today and still no code. I will wiggle the wires again and see if the codes come back tomorrow. Should I hook up the fuelpak and see if the codes come back or wait?
 
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Old Mar 24, 2016 | 09:36 PM
  #42  
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Originally Posted by bdtaylor1979
I wiggled the wire yesterday and rode home and no code. Rode to work today and no code. Rode home today and still no code. I will wiggle the wires again and see if the codes come back tomorrow. Should I hook up the fuelpak and see if the codes come back or wait?
==============================================

Ok,so thats 3 rides at 3 diff times with no re-appearing o2/emission codes with the only thing you did or changed was to simply fuel up with a healthy dose of concentrated techron like i rec you try.

It's looking as though the concentrated techron clean i rec is doing what it does best which is cleaning carbon & contaim from the engine & 02's too.

So with now having wiggled and or messed with the wires going to the 02 sensors mult time & didnt cause any codes to reappear i'd not rec wiggling & or messing around with the o2 wires & or connectors any more at this point because you dont want to cause a new problem.

Run the 2nd tank of concentrated version of techron concentrated version @ 9oz per 6 gals fuel ratio .

Then when that tank of fuel treated with techron is all used up refill the tank with along with a healthy dose of o2 sensor & cat cleaner .

Then after running that thru the motor & see how it does after that hopefully not getting any more re-appearing o2 /emission codes ,but so far its looking good.

Moving onto the Fuel Pack,PLS BE PATIENT & DO NOT RUSH TO HOOK UP THE FUEL PACK UNTIL YOU HAVE COMPLETED THE CLEANING WITH TECHRON & O2 SENSOR CLEANER BECAUSE YOU CAN CAUSE MORE PROBLEMS DOING THAT TOO SOON!

THEN AFTER THE 2 STEP CLEANING PROCESS I REC (TECHRON & THEN O2 & CAT CLEANER) IS FULLY COMPLETED RIDE APPROX 100 MILES ON A FRESH TANK OF UNTREATED FUEL WITH HOPEFULLY NO MORE REAPPEARING CODES THAT WOULD SHOW THE PROBLEM IS GONE AT THAT POINT POST RUNNING THRU A FEW TANKS OF FUEL WITH RE-APPEARING EMISSION CODES.

Then & only then should you re-attach the fuel pack to the bike and if more codes re-appear after that there's either an issue/defect within the fuel pack itself causing codes to re-appear or the fuel pack needs to be re-calibrated/tuned properly on a dyno to get emissions back into spec where they belong to eliminate emissions codes from re-appearing either of which the a good dyno tech should be able to properly diagnose.

BTW,Hows the motor seem to be running at this point,nice & smooth like it should with decent power taking into consideration the motors 100k miles on it?

Thanks for keeping us posted on the progress.

scott
 

Last edited by wscott; Mar 24, 2016 at 10:22 PM.
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Old Mar 24, 2016 | 10:03 PM
  #43  
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Originally Posted by bdtaylor1979
Should I hook up the fuelpak and see if the codes come back or wait?
I'd finish the Techron treatment, and if no codes... then reconnect the fuelpak.
 
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Old Mar 24, 2016 | 11:24 PM
  #44  
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Originally Posted by wscott
==============================================

Ok,so thats 3 rides at 3 diff times with no re-appearing o2/emission codes with the only thing you did or changed was to simply fuel up with a healthy dose of concentrated techron like i rec you try.

It's looking as though the concentrated techron clean i rec is doing what it does best which is cleaning carbon & contaim from the engine & 02's too.

So with now having wiggled and or messed with the wires going to the 02 sensors mult time & didnt cause any codes to reappear i'd not rec wiggling & or messing around with the o2 wires & or connectors any more at this point because you dont want to cause a new problem.

Run the 2nd tank of concentrated version of techron concentrated version @ 9oz per 6 gals fuel ratio .

Then when that tank of fuel treated with techron is all used up refill the tank with along with a healthy dose of o2 sensor & cat cleaner .

Then after running that thru the motor & see how it does after that hopefully not getting any more re-appearing o2 /emission codes ,but so far its looking good.

Moving onto the Fuel Pack,PLS BE PATIENT & DO NOT RUSH TO HOOK UP THE FUEL PACK UNTIL YOU HAVE COMPLETED THE CLEANING WITH TECHRON & O2 SENSOR CLEANER BECAUSE YOU CAN CAUSE MORE PROBLEMS DOING THAT TOO SOON!

THEN AFTER THE 2 STEP CLEANING PROCESS I REC (TECHRON & THEN O2 & CAT CLEANER) IS FULLY COMPLETED RIDE APPROX 100 MILES ON A FRESH TANK OF UNTREATED FUEL WITH HOPEFULLY NO MORE REAPPEARING CODES THAT WOULD SHOW THE PROBLEM IS GONE AT THAT POINT POST RUNNING THRU A FEW TANKS OF FUEL WITH RE-APPEARING EMISSION CODES.

Then & only then should you re-attach the fuel pack to the bike and if more codes re-appear after that there's either an issue/defect within the fuel pack itself causing codes to re-appear or the fuel pack needs to be re-calibrated/tuned properly on a dyno to get emissions back into spec where they belong to eliminate emissions codes from re-appearing either of which the a good dyno tech should be able to properly diagnose.

BTW,Hows the motor seem to be running at this point,nice & smooth like it should with decent power taking into consideration the motors 100k miles on it?

Thanks for keeping us posted on the progress.

scott
Ok, that's what I was thinking too. I will wait and let the cleaners do there job before reinstalling the fuelpak. The bike seems to run good. Doesn't seem to be a big difference in performance. Seems to run smooth. I stated in a earlier post that the engine was replaced about 25,000 miles ago with a complete brand new engine from harley. But I'm sure the o2 sensors are original with almost 100k miles on them.
 
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Old Mar 24, 2016 | 11:24 PM
  #45  
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Originally Posted by hattitude
I'd finish the Techron treatment, and if no codes... then reconnect the fuelpak.
That's what I was thinking.
 
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Old Mar 25, 2016 | 08:53 AM
  #46  
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Originally Posted by bdtaylor1979
Ok, that's what I was thinking too. I will wait and let the cleaners do there job before reinstalling the fuelpak. The bike seems to run good. Doesn't seem to be a big difference in performance. Seems to run smooth. I stated in a earlier post that the engine was replaced about 25,000 miles ago with a complete brand new engine from harley. But I'm sure the o2 sensors are original with almost 100k miles on them.
====================

Ah,ok,i missed the engine was rep 25k miles ago but like you said there would have been no reason to repl o2 sensors that were in the ex system when motor was changed so they would have 100k miles on them.

But even though new motor only has 25k miles on it like i rec earlier the 2 step cleaning procedure should still be done on an efi bike a min of 1x yrly so your motor with only 25k on it had missed getting 2x if not 3 of the 2 step cleaning procedures i rec to clean carbon & contamination off the o2's along with removing/cleaning excess carbon from combustion chambers,pistons & back side of intake valves & from the cat converter too.

Doing that on vehicles with EFI (bikes/cars/trucks) a min of 1x yrl (2x yrly best case) should avoid issues with chk engine light & emission codes along with o2's & injectors getting dirty causing reduced engine perf and fuel mileage it can also avoid having the the cat converter get dirty or in worst case plugged where its past the point of being cleaned being very expensive to replace in order to pass yrly inspection all of which can cause chk engine light & emission codes that are costly to correct that can in many cases BE AVOIDED DOING MY REC 2 STEP CLEANING PROCEDURE A MIN OF 1XYRLY WITH 2X YRLY BEING BEST CASE.

And of course along with doing my rec 2 step cleaning procedure you need to also ensure proper timely maint of air filter,fuel filter (where changeable),oil & filter changes,tune up as required (new plugs etc) because when those items are ignored and or pushed out too far (like mfg rec's too long for air filter & oil & filter changes too) over enough time & miles poor maint in those areas also has a negative impact on engine operation/efficiency that can also leading to emission issues /chk engine light/emission codes etc too.

And doing my rec 2 step cleaning for EFI systems 1x to 2x yrly also keeps the motor running nice & smooth with best possible pwr & highest fuel mileage at all times every minute and mile your riding the bike or driving the car which is worth something to me too.

And you get all that for spending only $30 to do my rec 2 step cleaning process 1x to 2x yrly that avoids headaches down the road.

I am beating this seemingly small issue to death because most people dont realize how important it is to spend a few bucks yrly to do the simple 2 step cleaning thats keeps the bike/car running top notch that can bite you later on replacing fairly expensive o2's and or an expensive cat converter all due to a lack of doing a $30 2 step cleaning maint procedure 1x-2x yrly thats simply involves pouring a couple bottles into the fuel tank when filling up & driving, thats it.

Good luck & i hope the emission code remain clear from your bike like they have for the last 3-4x rides youv'e taken after treating the fuel tank with a healthy dose of concentrated Techron like i rec you do with the 2nd cleaning step i rec using o2 sensor /cat cleaner still to come after that.

Scott
 

Last edited by wscott; Mar 25, 2016 at 09:00 AM.
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Old Mar 28, 2016 | 12:55 PM
  #47  
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Didn't get to ride this weekend but rode to work today and no code. Going to fill up and start the second tank with techron today.
 
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Old Mar 28, 2016 | 03:22 PM
  #48  
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Originally Posted by bdtaylor1979
Didn't get to ride this weekend but rode to work today and no code. Going to fill up and start the second tank with techron today.
=====================

WOW,1st/ initial full tank of techron's concentrated version thru the motor & post last 4+ rides on the 1st tank of fuel treated with techron there have been " no reappearing emission / o2 sensor codes " .

Looks as though what i thought was going on with your bike is in fact the case ,so continue to follow thru with my rec 2 step cleaning process (like your currently doing) using techron concentrated version in 2 tanks of fuel & then the o2 sensor & cat converter cleaner after that in a 3rd tank of fuel which should hopefully avoid your bike from experiencing anymore re-appearing emission / o2 sensor codes.

The real test will be if you dont get any re-appearing emission codes after you run a tank of fresh fuel thru the motor/bike after you fully complete my rec 2step cleaning cleaning process which you can let us know how that goes .(1st running Concentrated Tehcron & then running o2 sensor cleaner after that.)

And then as a maint item do that same 2 step cleaning process 1x or 2x yrly and you should be good to go which will keep the motor running @ top efficinecy with best pwr & fuel mileage due to excess carbon & contamination being removing and or at the very least being keep at a minimum from the engines combustion chambers,fuel injectors & o2 sensors .

Now as maint clean item 1x-2x yrly just as along as no additional emission codes re-appear you only need to run 1 tank of concentrated Techron (Not 2 tanks treated w-techron) to clean injectors & combustion chambers prior to running the o2 sensor cleaner & cat cleaner to clean the 02's & cat if your bike still has a cat.

Thanks for updates & pls continue to keep us posted on your progress.

Scott
 

Last edited by wscott; Mar 28, 2016 at 03:51 PM.
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Old Mar 28, 2016 | 06:33 PM
  #49  
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Originally Posted by bdtaylor1979
Didn't get to ride this weekend but rode to work today and no code. Going to fill up and start the second tank with techron today.
Good job... looks like you found your problem.....
 
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Old Mar 28, 2016 | 08:15 PM
  #50  
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Originally Posted by wscott
=====================

WOW,1st/ initial full tank of techron's concentrated version thru the motor & post last 4+ rides on the 1st tank of fuel treated with techron there have been " no reappearing emission / o2 sensor codes " .

Looks as though what i thought was going on with your bike is in fact the case ,so continue to follow thru with my rec 2 step cleaning process (like your currently doing) using techron concentrated version in 2 tanks of fuel & then the o2 sensor & cat converter cleaner after that in a 3rd tank of fuel which should hopefully avoid your bike from experiencing anymore re-appearing emission / o2 sensor codes.

The real test will be if you dont get any re-appearing emission codes after you run a tank of fresh fuel thru the motor/bike after you fully complete my rec 2step cleaning cleaning process which you can let us know how that goes .(1st running Concentrated Tehcron & then running o2 sensor cleaner after that.)

And then as a maint item do that same 2 step cleaning process 1x or 2x yrly and you should be good to go which will keep the motor running @ top efficinecy with best pwr & fuel mileage due to excess carbon & contamination being removing and or at the very least being keep at a minimum from the engines combustion chambers,fuel injectors & o2 sensors .

Now as maint clean item 1x-2x yrly just as along as no additional emission codes re-appear you only need to run 1 tank of concentrated Techron (Not 2 tanks treated w-techron) to clean injectors & combustion chambers prior to running the o2 sensor cleaner & cat cleaner to clean the 02's & cat if your bike still has a cat.

Thanks for updates & pls continue to keep us posted on your progress.

Scott
Its been about 6-8 rides and still no codes. Since the codes haven't come back, I'm afraid to reinstall the fuelpak after the tank of cat/o2 sensor cleaner lol. Luckily my bike didn't come with a cat.
 
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