• Ciao Guest - You’ve landed at the ultimate Guzzi site. NEW FORUM REGISTRATIONS REQUIRE EMAIL ACTIVATION - CHECK YOUR SPAM FOLDER - Use the CONTACT above if you need help. New to the forum? For all new members, we require ONE post in the Introductions section at the bottom, in order to post in most of the other sections. ALWAYS TRY A SEARCH BEFORE STARTING A NEW TOPIC - Most questions you may have, have likely been already answered. DON'T BE A DRIVE-BY POSTER: As a common courtesy, check back in and reply within 24 hours, or your post will be deleted. Note there's decades of heavily experienced Guzzi professionals on this site, all whom happily give endless amounts of their VALUABLE time for free; BE COURTEOUS AND RESPECTFUL!
  • There is ZERO tolerance on personal attacks and ANY HYPERLINKS to PRODUCT(S) or other competing website(s), including personal pages, social media or other Forums. This ALSO INCLUDES ECU DIAGnostic software, questions and mapping. We work very hard to offer commercially supported products and to keep info relevant here. First offense is a note, second is a warning, third time will get you banned from the site. We don't have the time to chase repeat (and ignorant) offenders. This is NOT a social media platform; It's an ad-free, privately funded website, in small help with user donations. Be sure to see the GTM STORE link above; ALL product purchases help support the site, or you can upgrade your Forum profile or DONATE via the link above.
  • Be sure to see the GTM STORE link also above for our 700+ product inventory, including OEM parts and many of our 100% Made-in-SoCal-USA GTM products and engine kits. In SoCal? Click the SERVICE tab above for the best in service, tires, tuning and installation of our products or custom work, and don't miss our GT MotoCycles® (not) art on the BUILDS tab above. WE'RE HERE ONLINE ONLY - NO PHONE CALLS MADE OR RECEIVED - DO NOT EMAIL AND ASK QUESTIONS OR ASK TO CALL YOU.
  • Like the new V100, GuzziTech is full throttle into the future! We're now running on an all-new server and we've updated our Forum software. The visual differences are obvious, but hopefully you'll notice the super-fast speed. If you notice any glitches or have any issues, please post on the Site Support section at the bottom. If you haven't yet, please upgrade your account which is covered in the Site Support section or via the DONATE tab above, which gives you full site access including the DOWNLOADS section. We really appreciate every $ and your support to keep this site ad-free. Create an account, sign in, upgrade your account, and enjoy. See you on the road in 2024.

Norge O2 Sensor

pyoungbl

pyoungbl

Cruisin' Guzzisti
Joined
Jul 16, 2011
Messages
189
Location
Portsmouth
My '07 Norge has about 18K miles. I'm the third owner but basically the bike is stock. Last fall I installed an O2 Emulator to cure a very slight case of popping on decel. Last weekend I took my first really long ride and, over 4 tanks of gas, saw that I was only getting about 30 mpg. After about 675 miles I disconnected the Emulator and re-connected the O2 Sensor. Within 10 miles I had the check engine light come on. I pulled the sensor and it was coated with thick black carbon so I'm sure it was fouled from running so rich. Replacing the sensor solved the problem of check engine light. Now I'd like to fix the fouled sensor, if possible. What's the best way to clean this puppy up without making things worse? It's too darn expensive to just throw away. Oh, and now I have no popping on decel!

Peter Y.
 
Peter, what emulator are you using, do you know?

If you can't revive the sensor, I have a few. Ping me direct.
 
What made you go for a O2 emulator to solve the popping?
If you search this forum the problem has been done to death, with Todd's ECU reflash it seems being the only real solution.
I have reduced my bike's popping with a Stepper motor on/off valve and a Fatduc O2 fooler (which works with the Lambda sensor not without it) but it is still there to some extent especially in hot weather. I'm afraid the cheap and cheerful solutions only take you so far.
 
davem said:
What made you go for a O2 emulator to solve the popping?
If you search this forum the problem has been done to death, with Todd's ECU reflash it seems being the only real solution.
Click to expand...
Todd and I talked about my problem. He thought that the emulator might have the wrong dip switch settings, something I confirmed when I opened up the unit. Todd supplied me with the correct dip settings. Yesterday I ran a 68 mile loop and the bike ran perfectly. It seems the problem is solved. Oh, and I measured 50 mpg for that loop (1.36 gal).
I did an extensive forum search last fall prior to buying the emulator. Although the reflash is probably the 100% solution I think I have gotten close enough for my purposes. Todd also pointed out that each bike is enough different that "one size does not fit all" when it comes to the emulator so any installation is likely to require a bit of fine tuning to get it right.
 
I'm pleased you got the problem sorted. Do I take it this is not Todd's O2 Optimizer and it does away with the Lambda sensor altogether?
 
Dave;
This was Todd's Optimizer but it came with the wrong dip settings from the manufacturer. Still have the O2 sensor in the system.

Peter
 
.... so from what I'm gathering, this optimizer will cure the low speed fuelling issues (running too lean between 3000 and 4000 rpm) but has no effect on greater than 20% throttle openings. This would answer my worries completely with the new Stelvio 2012 and would mean I wouldn't need a powercommander or a reflashed ECU?
.... or have I got it wrong?
Thanks
Mike
 
mike5100 said:
.... so from what I'm gathering, this optimizer will cure the low speed fuelling issues (running too lean between 3000 and 4000 rpm) but has no effect on greater than 20% throttle openings. This would answer my worries completely with the new Stelvio 2012 and would mean I wouldn't need a powercommander or a reflashed ECU?
.... or have I got it wrong?
Thanks
Mike
Click to expand...

as the new US 2012 models have 2 O2 sensors you will need 2 O2 optimizers from Todd.
Or Todd has already finished a new version with one box for both O2 sensors.

I have European 2011 = US 2012 model and use 2 O2 optimzers from Todd, one for each O2 sensor.
I am just testing the optimal settings for me. Rich setting works perfect to ride but has a real heavy increase of fuel usage.
So I changed settings step by step and now start using it at the leanest possible setting with the beginning bike season.
will see how this works.
But, bikes are really different, so it may be possible to use different settings on different machines.
 
Mike, I no longer offer the 02-optimizer stand-alone, only with a PC-V. The dual-sensor optimizer will be adjustable from within the PC-V... it is not yet ready. Per my previous post elsewhere, the only solution for the new dual-sensor bikes currently is my GT-Rx ECU flash, and you can add a PC-V & AT if desired.
 
You must log in or register to reply here.
Back
Top