latte
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Post by latte on Jan 25, 2017 10:23:05 GMT -7
I'm curious as to why to remove O2 Sensors? Does the ECU flash also renders the O2 Sensor useless? It was explained to me by Nels that it allows more control over the fueling and the ability to smooth out the bike.
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Post by slv on Jan 25, 2017 13:07:55 GMT -7
I'm curious as to why to remove O2 Sensors? Does the ECU flash also renders the O2 Sensor useless? It was explained to me by Nels that it allows more control over the fueling and the ability to smooth out the bike. That's it. The sensors will send data to the ECU which will try to correct the fuel/air mix that the flash is correcting for the exhaust mods. If you don't remove them, the UCU will constant fight between the flash setting and the data from the sensors.
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Post by Cruizin on Jan 25, 2017 17:04:47 GMT -7
Nice, I plan to do the same. is this what you used to plug the O2 sensor holes? A link would be even better than the pic! Thanks for that though!
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latte
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Post by latte on Jan 26, 2017 7:23:24 GMT -7
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latte
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Post by latte on Jan 26, 2017 9:35:36 GMT -7
A much cheaper solution that fellow forum-member operationfz posted in his midpipe review is to just buy the hardware. Having trouble quoting from another thread on mobile, but he states:
"The link pipe did NOT come with O2 Sensor plugs, if you are eliminating the O2's you will need to pick up (2) 12 x 1.25 x 20 Stainless bolts with (2) 12mm Stainess lock-washers to plug the holes for about $4.00. Also, use some sort of Locktite on the theads. I used the Blue Locktite."
Simple and cheap alternative!
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Post by slv on Jan 26, 2017 11:18:59 GMT -7
A much cheaper solution that fellow forum-member operationfz posted in his midpipe review is to just buy the hardware. Having trouble quoting from another thread on mobile, but he states: "The link pipe did NOT come with O2 Sensor plugs, if you are eliminating the O2's you will need to pick up (2) 12 x 1.25 x 20 Stainless bolts with (2) 12mm Stainess lock-washers to plug the holes for about $4.00. Also, use some sort of Locktite on the theads. I used the Blue Locktite." Simple and cheap alternative! Blue loctite turns to goo at temps over 350 degrees F. It doesn't regain its bonding priorities when it cools; it turns to a brittle plastic that eventually becomes burnt carbon with repeated heat cycles. Honestly, I prefer anti-seize for this application. Later in life we may have options for wide and sensors that work with Flash Tune products. It will be nice to have the ability to remove these plugs at some point. The bolts are a great idea though.
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latte
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Post by latte on Jan 26, 2017 13:19:04 GMT -7
That's what I was thinking. It may even be too hot for red loctite, I'd have to check its temp range.
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Post by slv on Jan 26, 2017 14:43:46 GMT -7
That's what I was thinking. It may even be too hot for red loctite, I'd have to check its temp range. It's about 450, but that stuff only lets go with heat. It may be permanent with red.
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paulo2t
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Post by paulo2t on Jan 27, 2017 20:23:54 GMT -7
Thank you for the info. I had the flash done for my FJ-09, which had an Akrapovic full Titanium exhaust and a K&N air filter. I was unaware about removing the O2 sensor. I'd think that if you install a full system without the catalyst on the FZ, the O2 sensor will be rendered out. In the case of a slip on, like I have (Akrapovic) the exhaust mod does not mater or should not interfere with the OS2 sensor as it is placed before the slip-on and after the catalytic.
I guess I'll have a talk with Nels when the time comes.
Paulo
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tonysal
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Post by tonysal on Feb 2, 2017 11:10:45 GMT -7
slv,
this is a great post. thanks for taking the time to put it together.
One question I would have for everyone would be regarding the air filter. is there any benefit to swapping it out for something that breathes better? I haven't seen a post anywhere in the forums regarding a different air filter, but usually, when a freer flowing exhaust is used (for most applications), it's also beneficial to swap to a freer-breathing air filter. is that not the case with the -10?
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Post by slv on Feb 3, 2017 8:13:14 GMT -7
tonysal It stands to reason that an air filter with a higher flow rate would improve performance, but I haven't seen and specific FZ-10 info on the subject. Personally, I like a re-usable, cleanable air filter as opposed to paper or foam types. I haven't gotten into mine yet.
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tonysal
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Post by tonysal on Feb 14, 2017 13:09:07 GMT -7
slv,
finally took the plunge and paid for an ECU flash from 2WDW. can't wait. for now, I'm sticking with the stock exhaust.
Nels informed me that i'll have to remove the O2 sensors. my question is, at what point? I thought I saw somewhere else on the forum that there was a point when the O2 sensors should be removed in order to not confuse the ECU? Of course, I can't find it now. can you (or anyone) assist?
r, TS
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dynaguy
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Post by dynaguy on Feb 14, 2017 15:33:41 GMT -7
"At what point?" After removing ecu, before reinstalling. The left side sensor is pretty easily removed. The right side is more difficult. See above. If you leave them in when your reflashed ecu returns, you will probably have issues.
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Post by slv on Feb 14, 2017 21:47:40 GMT -7
"At what point?" After removing ecu, before reinstalling. The left side sensor is pretty easily removed. The right side is more difficult. See above. If you leave them in when your reflashed ecu returns, you will probably have issues. tonysalDynaGuy says it correctly. The sensors need to be removed before you plug the ECU back in. Not only would the sensors confuse the new ECU program by providing conflicting air/fuel commands, it will cause your ECU to show fault codes. So, please, disconnect your sensors while the ECU is out. Also, you'll need to buy some plugs for the sensor holes.
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Post by slv on Feb 14, 2017 21:55:11 GMT -7
tonysalYou can buy purpose-made sensor plugs like these Or you could just buy 12mm x 1.25 stainless steel bolts. They don't need to be longer than 10 or 12mm.
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tonysal
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Post by tonysal on Feb 15, 2017 10:00:22 GMT -7
thanks dynaguy and slv . just wanted to make sure I didn't do something that caused the bike to throw codes. this is the first electronics heavy bike I've owned (my 2 other bikes are an '02 and an '05). slv, thanks for the heads-up on the O2 sensor plugs - already purchased those based on your earlier posts...
regards, Tony
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Deleted
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Registered: Apr 26, 2024 4:54:24 GMT -7
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Post by Deleted on Feb 15, 2017 12:21:18 GMT -7
Bung plugs ordered and Sensor plug connectors order.
ECU going to be shipped to Nels on Monday to get the flash for a stock exhaust and quick shifter. :-)
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Post by slv on Feb 15, 2017 18:58:24 GMT -7
Bung plugs ordered and Sensor plug connectors order. ECU going to be shipped to Nels on Monday to get the flash for a stock exhaust and quick shifter. :-) You won't regret it. Even with the stock exhaust, it wakes some demons in the motor. In my opinion, the most noticeable change is the removed restriction on throttle opening below 8000 RPM. The stock setting either prevents full throttle below 8000 RPM, or slows the opening below 8000 (I can't remember which.) Either way, removing the restriction makes for a much more exciting twist of the wrist (on a bike that is already extremely exciting.)
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Deleted
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Registered: Apr 26, 2024 4:54:24 GMT -7
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Post by Deleted on Feb 15, 2017 19:18:25 GMT -7
Bung plugs ordered and Sensor plug connectors order. ECU going to be shipped to Nels on Monday to get the flash for a stock exhaust and quick shifter. :-) You won't regret it. Even with the stock exhaust, it wakes some demons in the motor. In my opinion, the most noticeable change is the removed restriction on throttle opening below 8000 RPM. The stock setting either prevents full throttle below 8000 RPM, or slows the opening below 8000 (I can't remember which.) Either way, removing the restriction makes for a much more exciting twist of the wrist (on a bike that is already extremely exciting.) Yeah I figured do this now and take advantage of the price. I can always send it back if I decide on an exhaust down the road.
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Post by slv on Feb 15, 2017 22:02:21 GMT -7
@bogie , make sure you take the time to list your bike model and all conditions related to the flash: Exact exhaust configuration EXUP removal or not. (Not for bikes retaining the cat) Sensor removal (necessary for flash to work properly) Quick shifter or not
These guys are really good at what they do and extremely professional, but they flash a lot of units for many types of bikes. It's better to spell everything out so they know exactly what to do.
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