09-21-2015, 03:15 PM
Thanks to Gumby 1100 for this How To and to Siggy Javotnik for the explanation directly below
1. Installing an O2 eliminator (a resistor) can soften snatchy throttle response, especially at small throttle openings or on/off throttle. It can also fix the hunting/surging that some folks experience at small throttle openings.
2. It is not necessary to physically remove the O2 sensor, and it's a royal PITA to do so unless you have the right slotted wrench. (This is somewhat controversial -- some people posit that physical removal is smart because the O2 sensor will "fail" if it's not connected to the ECU. I respectfully disagree, because I can't see why that would be true. The O2 sensor is not heated or cleaned by dint of being hooked up to the ECU).
3. Installing an O2 eliminator will make your bike run richer and therefore cooler and may slightly adversely affect fuel economy (I found it negligible or non-existent, but YMMV. In fact, I experienced a slight increase in fuel economy, but that makes zero sense and I can't explain it so I chalk it up to user error).
4. If your bike fuels nicely with the stock setup, don't bother with the O2 eliminator. If, on the other hand, you have fueling problems at low throttle, it's a cheap experiment to see if it fixes the problem (it seems like it usually does).
5. Many aftermarket or race exhaust systems require or include an O2 eliminator, and simply do not have a physical threaded hole for the O2 sensor.
Siggy
After delaying the install of my O2 Eliminator Plug for several months (long enough to do the_undecider proud), I cannot believe that I waited this long!
I bought it on a whim because I never thought that I had any real fueling issues...no real surging (speed/rpm fluctuations) or low speed drivability issues....or so I thought. Adding this simple plug was literally like installing a poor man's Power Commander!
I realize now that the O2 sensor was causing the fueling to lean out or shut off abruptly every time I rolled off the throttle. With the plug, shifting is now much easier to rev match and engine braking is reduced which greatly smooths out the driving experience.
Previously, driving at low speeds in first and especially in second was harsh, raspy and abrupt (clearly it was running too lean). I had to formerly stay on the throttle and precisely balance clutch feathering, especially when cornering, but no more. I can now effortlessly tool around in second and cornering is much more relaxing.
After one tank of gas, my mileage does not seem to have dropped off noticeably, if at all...more driving will be required, and it will definitely be more enjoyable!
Arguably, an O2 Eliminator Plug is the best bang for the buck on a CB1100. Even as just an experiment, it is well worth the few dollars and the few minutes it takes to install.
PART:
O2 Sensor Eliminator Plug Link: http://www.ebay.co.uk/itm/o2-Oxygen-Lamb...339ac11f47
PROCESS:
I found the photos on the UK forum, hopefully they show enough detail...if not, I'll take some of my own ( see photos in following post)
In short:
1) Remove Right Side Cover
2) Disconnect O2 Lambda Sensor (Trace the line down to the header just to be safe and to be sure it is the right connector)
3) Plug in the Sensor Eliminator
4) I Put a small plastic bag over the side of the connector leading to the O2 Lambda Sensor to keep moisture out and in case I needed to reconnect it (such as if an EPA emissions test was ever required).
On my 2014 Canadian, the O2 Sensor Lead insulation was black and weave-textured too. The other lead in the same clear shroud had a white P/N tag on it that may have read: 32102-MGC-N300 which I think, is ABS related.
Gumby 1100
1. Installing an O2 eliminator (a resistor) can soften snatchy throttle response, especially at small throttle openings or on/off throttle. It can also fix the hunting/surging that some folks experience at small throttle openings.
2. It is not necessary to physically remove the O2 sensor, and it's a royal PITA to do so unless you have the right slotted wrench. (This is somewhat controversial -- some people posit that physical removal is smart because the O2 sensor will "fail" if it's not connected to the ECU. I respectfully disagree, because I can't see why that would be true. The O2 sensor is not heated or cleaned by dint of being hooked up to the ECU).
3. Installing an O2 eliminator will make your bike run richer and therefore cooler and may slightly adversely affect fuel economy (I found it negligible or non-existent, but YMMV. In fact, I experienced a slight increase in fuel economy, but that makes zero sense and I can't explain it so I chalk it up to user error).
4. If your bike fuels nicely with the stock setup, don't bother with the O2 eliminator. If, on the other hand, you have fueling problems at low throttle, it's a cheap experiment to see if it fixes the problem (it seems like it usually does).
5. Many aftermarket or race exhaust systems require or include an O2 eliminator, and simply do not have a physical threaded hole for the O2 sensor.
Siggy
After delaying the install of my O2 Eliminator Plug for several months (long enough to do the_undecider proud), I cannot believe that I waited this long!
I bought it on a whim because I never thought that I had any real fueling issues...no real surging (speed/rpm fluctuations) or low speed drivability issues....or so I thought. Adding this simple plug was literally like installing a poor man's Power Commander!
I realize now that the O2 sensor was causing the fueling to lean out or shut off abruptly every time I rolled off the throttle. With the plug, shifting is now much easier to rev match and engine braking is reduced which greatly smooths out the driving experience.
Previously, driving at low speeds in first and especially in second was harsh, raspy and abrupt (clearly it was running too lean). I had to formerly stay on the throttle and precisely balance clutch feathering, especially when cornering, but no more. I can now effortlessly tool around in second and cornering is much more relaxing.
After one tank of gas, my mileage does not seem to have dropped off noticeably, if at all...more driving will be required, and it will definitely be more enjoyable!
Arguably, an O2 Eliminator Plug is the best bang for the buck on a CB1100. Even as just an experiment, it is well worth the few dollars and the few minutes it takes to install.
PART:
O2 Sensor Eliminator Plug Link: http://www.ebay.co.uk/itm/o2-Oxygen-Lamb...339ac11f47
PROCESS:
I found the photos on the UK forum, hopefully they show enough detail...if not, I'll take some of my own ( see photos in following post)
In short:
1) Remove Right Side Cover
2) Disconnect O2 Lambda Sensor (Trace the line down to the header just to be safe and to be sure it is the right connector)
3) Plug in the Sensor Eliminator
4) I Put a small plastic bag over the side of the connector leading to the O2 Lambda Sensor to keep moisture out and in case I needed to reconnect it (such as if an EPA emissions test was ever required).
On my 2014 Canadian, the O2 Sensor Lead insulation was black and weave-textured too. The other lead in the same clear shroud had a white P/N tag on it that may have read: 32102-MGC-N300 which I think, is ABS related.
Gumby 1100